https://script.spoken-tutorial.org/index.php?action=history&feed=atom&title=Python-3.4.3%2FC3%2FManipulating-strings%2FEnglish 2026-05-14T18:49:19Z Revision history for this page on the wiki MediaWiki 1.23.17 https://script.spoken-tutorial.org/index.php?title=Python-3.4.3/C3/Manipulating-strings/English&diff=44049&oldid=prev 2018-08-13T11:34:44Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 11:34, 13 August 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Convert a '''string''' to upper or lowercase and</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Convert a '''string''' to upper or lowercase and</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Join '''list''' '''elements''' to form a '''string'''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Join '''list''' '''elements''' to form a '''string'''</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; 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color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 33:</td> <td colspan="2" class="diff-lineno">Line 31:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* '''Python 3.4.3''' and</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; 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white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 460:</td> <td colspan="2" class="diff-lineno">Line 454:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div># Given a string '''s = &quot;this was a string”''', how will you change it to &quot;'''this wasn't a list'''&quot;? &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div># Given a string '''s = &quot;this was a string”''', how will you change it to &quot;'''this wasn't a list'''&quot;? &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; 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white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 486:</td> <td colspan="2" class="diff-lineno">Line 478:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;s[::2].lower()&lt;/nowiki&gt;'''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;s[::2].lower()&lt;/nowiki&gt;'''</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| 2. 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Nancyvarkey https://script.spoken-tutorial.org/index.php?title=Python-3.4.3/C3/Manipulating-strings/English&diff=43976&oldid=prev 2018-08-07T10:39:12Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 10:39, 7 August 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 486:</td> <td colspan="2" class="diff-lineno">Line 486:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;s[::2].lower()&lt;/nowiki&gt;'''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;s[::2].lower()&lt;/nowiki&gt;'''</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| 2. In order to remove dots and to get '''substring '''we '''stride '''the '''string s.'''To change the '''string''' to '''lowercase''', we use the '''string''' '''method lower().'''</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| 2. In order to remove dots and to get '''substring '''we '''stride '''the '''string s.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''To change the '''string''' to '''lowercase''', we use the '''string''' '''method lower().'''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> </table>

Nirmala Venkat https://script.spoken-tutorial.org/index.php?title=Python-3.4.3/C3/Manipulating-strings/English&diff=43975&oldid=prev 2018-08-07T10:36:02Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 10:36, 7 August 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 359:</td> <td colspan="2" class="diff-lineno">Line 359:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Now the variable '''<del class="diffchange diffchange-inline">email_proper</del>''' has the '''email '''in the proper form.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Now the variable '''<ins class="diffchange diffchange-inline">email''''' underscore '''''proper</ins>''' has the '''email '''in the proper form.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td colspan="2" class="diff-lineno">Line 369:</td> <td colspan="2" class="diff-lineno">Line 369:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Let us say, we have a list of '''email addresses''' in the variable '''<del class="diffchange diffchange-inline">email_list</del>''' as shown.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Let us say, we have a list of '''email addresses''' in the variable '''<ins class="diffchange diffchange-inline">email''''' underscore '''''list</ins>''' as shown.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td colspan="2" class="diff-lineno">Line 392:</td> <td colspan="2" class="diff-lineno">Line 392:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Highlight the output</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Highlight the output</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''print '''''inside parentheses''''' <del class="diffchange diffchange-inline">email_str</del>'''</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''print '''''inside parentheses''''' <ins class="diffchange diffchange-inline">email''''' underscore '''''str</ins>'''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td colspan="2" class="diff-lineno">Line 406:</td> <td colspan="2" class="diff-lineno">Line 406:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Assignment 4</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Assignment 4</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| From the '''<del class="diffchange diffchange-inline">email_str</del>''', change the separator to '''semicolon''' instead of '''comma'''.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| From the '''<ins class="diffchange diffchange-inline">email''''' underscore '''''str</ins>''', change the separator to '''semicolon''' instead of '''comma'''.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> </table>

Nirmala Venkat https://script.spoken-tutorial.org/index.php?title=Python-3.4.3/C3/Manipulating-strings/English&diff=43973&oldid=prev 2018-08-07T10:19:23Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 10:19, 7 August 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 122:</td> <td colspan="2" class="diff-lineno">Line 122:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>We need to check if the first three characters of the given '''string''' exists in the list''' <del class="diffchange diffchange-inline">week_name</del>'''. &#160;</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>We need to check if the first three characters of the given '''string''' exists in the list''' <ins class="diffchange diffchange-inline">week''''' underscore '''''name</ins>'''. &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 288:</td> <td colspan="2" class="diff-lineno">Line 288:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;['SATURDAY',&lt;/nowiki&gt; 'python', 'Sunday']''' &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''&lt;nowiki&gt;['SATURDAY',&lt;/nowiki&gt; 'python', 'Sunday']''' &#160;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Check if each '''element''' in the following '''list '''is present in the '''list''' '''<del class="diffchange diffchange-inline">week_name</del>'''. &#160;</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Check if each '''element''' in the following '''list '''is present in the '''list''' '''<ins class="diffchange diffchange-inline">week''''' underscore '''''name</ins>'''. &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 302:</td> <td colspan="2" class="diff-lineno">Line 302:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>It returns '''False''' for '''python '''as it is not there in the '''list <del class="diffchange diffchange-inline">week_name</del>.'''</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>It returns '''False''' for '''python '''as it is not there in the '''list <ins class="diffchange diffchange-inline">week''''' underscore '''''name</ins>.'''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td></tr> </table>

Priyacst https://script.spoken-tutorial.org/index.php?title=Python-3.4.3/C3/Manipulating-strings/English&diff=43954&oldid=prev 2018-08-06T06:52:53Z

<p>Created page with &quot;{| style=&quot;border-spacing:0;&quot; | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:no...&quot;</p> <p><b>New page</b></p><div>{| style=&quot;border-spacing:0;&quot;<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| &lt;center&gt;'''Visual Cue '''&lt;/center&gt;<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| &lt;center&gt;'''Narration'''&lt;/center&gt;<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide: Title<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Welcome to the spoken tutorial on '''Manipulating''' '''Strings'''. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Objectives <br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| In this tutorial, we will learn to<br /> <br /> * Slice a '''string''' and get '''substrings''' out of them<br /> * Reverse a '''string'''<br /> * Replace characters in a '''string'''<br /> * Convert a '''string''' to upper or lowercase and<br /> * Join '''list''' '''elements''' to form a '''string'''<br /> <br /> <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> System Specifications <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| To record this tutorial, I am using <br /> <br /> * '''Ubuntu Linux 16.04''' operating system<br /> * '''Python 3.4.3''' and<br /> * '''IPython 5.1.0'''<br /> <br /> <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Pre-requisite <br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| To practise this tutorial, you should know how to use<br /> <br /> * '''basic datatypes, operators, strings '''and '''lists'''<br /> <br /> If not, see the relevant '''Python''' tutorials on this website.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide<br /> <br /> <br /> string slicing<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| First let us see about '''string slicing'''.<br /> <br /> <br /> '''String slicing '''allows us to obtain '''substrings'''.<br /> <br /> <br /> The syntax for the string slicing is:<br /> <br /> '''string_name '''''inside square brackets '''''start '''''colon''''' stop '''or<br /> <br /> '''string_name '''''inside square brackets '''''start '''''colon '''''stop '''''colon '''''step'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Open the terminal<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Let us start '''ipython'''.<br /> <br /> <br /> Open the '''terminal.'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type '''ipython3'''<br /> <br /> <br /> Press''' Enter'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type '''ipython3 '''and press '''Enter.'''<br /> <br /> <br /> From here onwards, remember to press the '''Enter''' key after typing every command on the '''terminal'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''data = “python”'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Let us understand the '''string slicing''' with an example.<br /> <br /> <br /> Type, '''data '''''is equal to inside double quotes''''' python'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;print (data[0:3])&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight the output''' pyt'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''print '''''inside brackets '''''data '''''inside square brackets '''''0 '''''colon '''''3'''<br /> <br /> <br /> We get the '''sliced substring''' as '''pyt.'''<br /> <br /> Note that, we are '''slicing''' the '''string''' from the '''index''' 0 to 3. <br /> <br /> <br /> By doing so, the string elements from index 3 are not included.<br /> <br /> <br /> &lt;nowiki&gt;&lt;&lt;PAUSE&gt;&gt;&lt;/nowiki&gt;<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''week_name&lt;nowiki&gt; = [&quot;sun&quot;, &quot;mon&quot;, &quot;tue&quot;, &quot;wed&quot;, &quot;thu&quot;, &quot;fri&quot;, &quot;sat&quot;]&lt;/nowiki&gt;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Let us create a '''list, week''''' underscore '''''name '''which has names of the days of the week. <br /> <br /> <br /> Type as shown.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s = &quot;saturday&quot;'''<br /> <br /> Highlight ‘'''sat’'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s '''''is equal to inside double quotes''''' saturday'''<br /> <br /> <br /> We need to check if the first three characters of the given '''string''' exists in the list''' week_name'''. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;s[0:3]&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight the output<br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| '''Strings''' can be '''sliced''' into '''substrings'''. <br /> <br /> <br /> To get the first three characters of the string '''s''', <br /> <br /> type, '''s '''''inside square brackets '''''0 '''''colon '''''3'''<br /> <br /> <br /> As you can see, the character at last index ie '''3''' is not included in the sliced output.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;s[0:3] in week_name&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight '''True'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| We will check if the '''substring '''of''' s '''is present in the '''list''' '''week''''' underscore '''''name.'''<br /> <br /> <br /> Type '''s '''''inside square brackets '''''0 '''''colon '''''3 in week''''' underscore '''''name'''<br /> <br /> <br /> We get the output as '''True''' which indicates that the substring is present in the list.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Pause the video. <br /> <br /> <br /> Try this exercise and then resume the video.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Assignment 1<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Obtain the '''substring''' excluding the first and last characters from the '''string''' '''s'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch to terminal<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch back to '''terminal''' for the solution.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| '''&lt;nowiki&gt;s[1:-1]&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight -1<br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s '''''inside square brackets '''''1 '''''colon '''''-1'''<br /> <br /> <br /> As we already know, the last element of the '''string''' can be accessed using the index''' -1'''.<br /> <br /> <br /> &lt;nowiki&gt;&lt;&lt;PAUSE&gt;&gt;&lt;/nowiki&gt;<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s1 = &quot;dad&quot;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Next let us learn to check if a given '''string''' is a '''palindrome''' or not. <br /> <br /> <br /> A '''palindromic string''' is a '''string''' that is same as its reverse. <br /> <br /> <br /> Type, '''s1 '''''is equal to inside double quotes''''' dad'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Textbox '''&lt;nowiki&gt;s1[::-1]&lt;/nowiki&gt;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Now, we need to compare this '''string''' with its reverse.<br /> <br /> <br /> For reversing '''s1''', we '''stride''' the '''string''' from the first to last '''character.'''<br /> <br /> <br /> It is done''' '''by keeping the '''start''' and '''stop''' values as empty and '''step''' as -1.<br /> <br /> <br /> That is '''s1 '''''inside square brackets colon colon''''' -1'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;s1 == s1[::-1]&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight the output<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Now, we will check if the string '''s1''' is a '''palindrome''' or not.<br /> <br /> <br /> Type, '''s1''''' is double equal to''''' s1 '''''inside square brackets colon colon '''''-1'''<br /> <br /> <br /> The output '''True '''indicates that it is a '''palindrome'''. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Textbox''' &quot;Dad&quot;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| If the given '''string''' has capital '''D '''in''' dad''' instead of small '''d''', the comparison would return '''False'''. <br /> <br /> <br /> So, we have to convert the '''string''' to all '''lowercase''' or '''uppercase''', before comparison. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s2 = &quot;Dad&quot;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| '''Python''' provides the '''string''' '''methods''' '''lower''' and '''upper''' to achieve this.<br /> <br /> <br /> Let's try it out.<br /> <br /> <br /> Type, '''s2 '''''is equal to inside double quotes''''' '''capital''' D ad'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s2.upper()'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type '''s2.upper '''open and close parentheses<br /> <br /> <br /> We get all the '''characters''' in '''uppercase'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''s2'''<br /> <br /> <br /> Highlight the output<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type '''s2'''<br /> <br /> <br /> As you can see, '''s2''' has not changed. <br /> <br /> <br /> It is because, '''method upper''' returns a new '''string'''. <br /> <br /> <br /> It doesn't change the original '''string'''. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;s2.lower() == s2.lower()[::-1]&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight the output<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Let us compare the original and reversed '''string''' in '''lowercase.'''<br /> <br /> <br /> Type as shown.<br /> <br /> <br /> As expected the output is '''True'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Pause the video. <br /> <br /> <br /> Try this exercise and then resume the video.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Assignment 2<br /> <br /> '''&lt;nowiki&gt;['SATURDAY',&lt;/nowiki&gt; 'python', 'Sunday']''' <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Check if each '''element''' in the following '''list '''is present in the '''list''' '''week_name'''. <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch to terminal<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch back to '''terminal''' for the solution.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''for day&lt;nowiki&gt; in ['SATURDAY', 'python', 'S&lt;/nowiki&gt;unday']:print (day, day&lt;nowiki&gt;.lower()[:3] in week_name)&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight '''python False'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type as shown.<br /> <br /> <br /> It returns '''False''' for '''python '''as it is not there in the '''list week_name.'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;email = &quot;info[at]fossee[dot]in&quot;&lt;/nowiki&gt;'''<br /> <br /> <br /> Highlight '''at''' and '''dot'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Next let us learn to use '''replace method'''.<br /> <br /> <br /> Type, '''email '''''is equal to inside double quotes '''''&lt;nowiki&gt;info[at]fossee[dot]in&lt;/nowiki&gt;'''<br /> <br /> <br /> We often encounter '''email addresses''' which have '''@''' '''symbol '''and '''periods''' replaced with text as shown. <br /> <br /> <br /> Let us learn how to get back proper '''email''' '''addresses'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''email_at&lt;nowiki&gt; = email.replace(&quot;[at]&quot;, &quot;@&quot;)&lt;/nowiki&gt;'''<br /> <br /> '''print (email_at)'''<br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Now, we will first replace the '''&lt;nowiki&gt;[at]&lt;/nowiki&gt;''' with the '''@ symbol''', using the '''replace method'''.<br /> <br /> <br /> Type as shown.<br /> <br /> <br /> You can see that the '''@ symbol '''is properly replaced now.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Pause the video. <br /> <br /> <br /> Try this exercise and then resume the video.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Assignment 3<br /> <br /> '''&lt;nowiki&gt;info@fossee[dot]in&lt;/nowiki&gt;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Replace the '''&lt;nowiki&gt;[dot] &lt;/nowiki&gt;'''with ''''.'''' symbol in the given '''email.'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch to terminal<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch back to '''terminal''' for the solution.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''email_proper = email_at&lt;nowiki&gt;.replace(&quot;[dot]&quot;, &quot;.&quot;)&lt;/nowiki&gt;'''<br /> <br /> '''print (email_proper)'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type as shown.<br /> <br /> <br /> Now the variable '''email_proper''' has the '''email '''in the proper form.<br /> <br /> <br /> &lt;nowiki&gt;&lt;&lt;PAUSE&gt;&gt;&lt;/nowiki&gt;<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''&lt;nowiki&gt;email_list = [&quot;info@fossee.in&quot;, &quot;enquiries@fossee.in&quot;, &quot;help@fossee.in&quot;]&lt;/nowiki&gt;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Next, we will look at another interesting problem.<br /> <br /> <br /> Let us say, we have a list of '''email addresses''' in the variable '''email_list''' as shown.<br /> <br /> <br /> We will obtain one long '''string''' of '''email addresses,''' separated by '''commas''' or '''semicolons'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''email_str = &quot;, &quot;.join(email_list)'''<br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| We will use the '''string method join '''for joining the '''list items '''into a single '''string.'''<br /> <br /> <br /> Type as shown.<br /> <br /> <br /> '''Comma''' followed by a '''space''' will give the '''string''' with the same '''formatting'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''print (email_str)'''<br /> <br /> <br /> Highlight the output<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''print '''''inside parentheses''''' email_str'''<br /> <br /> <br /> You can see that all the email addresses joined into a single '''string'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Pause the video. <br /> <br /> <br /> Try this exercise and then resume the video.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Assignment 4<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| From the '''email_str''', change the separator to '''semicolon''' instead of '''comma'''.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch to terminal<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.097cm;padding-right:0.191cm;&quot;| Switch back to '''terminal''' for the solution.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type, '''email_str = email_str.replace(&quot;,&quot;, &quot;;&quot;)'''<br /> <br /> '''print (email_str)'''<br /> <br /> <br /> Highlight the output<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Type as shown.<br /> <br /> <br /> We see that the email addresses are joined by a semicolon followed by a space.<br /> <br /> <br /> &lt;nowiki&gt;&lt;&lt;PAUSE&gt;&gt;&lt;/nowiki&gt;<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Summary <br /> <br /> <br /> <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| This brings us to the end of this tutorial. Let us summarize.<br /> <br /> <br /> In this tutorial, we have learnt to, <br /> <br /> * Obtain '''substrings'''<br /> * Reverse '''strings''' by using the index numbers<br /> * Use the following methods<br /> ** '''upper()'''<br /> ** '''lower()'''<br /> ** '''replace() '''and<br /> ** '''join()'''<br /> <br /> <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Self assessment questions<br /> <br /> '''s = &quot;this was a string&quot;''' <br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Here are some self assessment questions for you to solve<br /> <br /> <br /> # Given a string '''s = &quot;this was a string”''', how will you change it to &quot;'''this wasn't a list'''&quot;? <br /> # The string '''s''' is assigned as shown, change the string to &quot;'''friends'''&quot;<br /> <br /> <br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Solutions of self assessment questions<br /> <br /> '''s = s.replace(&quot;string&quot;, &quot;list&quot;)'''<br /> <br /> '''s = s.replace(&quot;was&quot;, &quot;wasn't&quot;)'''<br /> <br /> '''print(s)'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| And the answers,<br /> <br /> 1. We will use the '''replace''' '''method''' to accomplish this.<br /> <br /> <br /> Here '''string''' and '''was''' in the statement will be replaced by '''list''' and '''wasn't '''respectively.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide <br /> <br /> Solution of self assessment questions<br /> <br /> '''&lt;nowiki&gt;s[::2].lower()&lt;/nowiki&gt;'''<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| 2. In order to remove dots and to get '''substring '''we '''stride '''the '''string s.'''To change the '''string''' to '''lowercase''', we use the '''string''' '''method lower().'''<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Forum<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Please post your timed queries in this forum.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Fossee Forum<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Please post your general queries on Python in this forum.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:none;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Slide Textbook Companion <br /> | style=&quot;background-color:#ffffff;border-top:none;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| FOSSEE team coordinates the TBC project. (16.45)<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Show Slide Acknowledgment<br /> <br /> http://spoken-tutorial.org<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Spoken Tutorial Project is funded by NMEICT, MHRD, Govt. of India.<br /> <br /> For more details, visit this website.<br /> <br /> |-<br /> | style=&quot;background-color:#ffffff;border-top:0.5pt solid #000001;border-bottom:0.5pt solid #000001;border-left:0.5pt solid #000001;border-right:none;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| Previous slide<br /> | style=&quot;background-color:#ffffff;border:0.5pt solid #000001;padding-top:0cm;padding-bottom:0cm;padding-left:0.095cm;padding-right:0.191cm;&quot;| This is Priya from IIT Bombay signing off. Thanks for joining.<br /> <br /> |}</div>

Priyacst