Misbah: Created page with "{|border=1 |- || '''Visual Cue''' | '''Narration''' |- || Title Slide | Welcome to this '''Spoken''' '''tutorial''' on '''Python Functions in Google Colab. ''' |- || '..."

2026-05-15T07:31:49Z

Created page with "{|border=1 |- || '''Visual Cue''' | '''Narration''' |- || Title Slide | Welcome to this '''Spoken''' '''tutorial''' on '''Python Functions in Google Colab. ''' |- || '..."

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{|border=1

|-

|| '''Visual Cue'''

| '''Narration'''

|-

|| Title Slide

| Welcome to this '''Spoken''' '''tutorial''' on '''Python Functions in Google Colab. '''

|-

|| '''Learning Objectives Slide'''

| In this tutorial, you will learn to:

• Define a new '''function''' using '''def'''.

• Call the '''function''' by its name.

• Use '''parameters''' and''' return values.'''

• Handle minor '''coding''' errors.

• Improve '''function''' using a '''default parameter'''.

|-

|| '''Disclaimer slide '''

| As Al tools constantly evolve, if you are unable to locate any icon or encounter difficulty at any step, you may use any conversational Al Chatbot for guidance.

|-

|| '''System Requirements Slide'''

| I am using the following setup:

• A computer with Internet connection.

• A Web browser such as '''Chrome''', '''Firefox''', or '''Edge'''.

• An active '''Google account to '''access '''Google Colab.'''

|-

|| '''Prerequisite Slide'''

For the Pre-requisites of this tutorial, visit the '''website '''shown on your screen'''

'''https://EduPyramids.org'''

| Learners should be familiar with Basic knowledge of '''Python syntax.'''

For the Pre-requisites of this tutorial, visit the '''website '''shown on your screen.''' '''

|-

|| '''Show the code file'''

The following code file is required to practice this tutorial.

1. Creating-a-Greeting.txt

This file is provided in the code files link of this tutorial page.

Please download and extract the file.

| The following '''code file''' is required to practice this '''tutorial'''.

This file is provided in the '''Code Files link''' of this '''tutorial '''page.

Please download and extract the file.

|-

|| Show slide: What is a function?

| Let’s now understand what a '''function''' is.

A '''function''' is reusable '''code''' for a specific action.

We define it once and use it many times.

|-

|| Show Google Colab homepage

| We will use '''Google Colab, a cloud-based editor''' in this tutorial.

|-

|| Show browser address bar with colab.research.google.com

| Open any '''web browser''' and Log into your '''Google account. '''

Now in the '''address bar''', '''type''' '''colab dot research dot google dot com''' press '''enter'''.

|-

|| Show Google Colab welcome page

| '''Welcome to colab webpage '''opens with an '''Open notebook window'''.

|-

|| Highlight “New Notebook” button

| To begin, we will create a '''new notebook'''.

So go to the bottom left of this '''window '''and''' click '''on the '''tab plus New notebook.'''

|-

|| Show new Colab notebook opening

| A new '''webpage''' opens.

The''' file''' name appears on the top left corner of the '''webpage'''.

By default it is named as this'''.'''

Let us rename this as shown on the screen.

This '''file''' is automatically saved to your '''Google drive. '''

|-

|| Blank code cell shown

| Now, we are ready to write a''' Python function'''.

|-

|| Show code cell (empty)

| Let us write our first''' function''' now.

We will create a simple '''function''' to generate a personalized greeting.

|-

|| def create_greeting(name):

return f"Welcome, {name}!"

| In the coding bar, type: '''def create underscore greeting open parenthesis name close parenthesis colon'''

Press '''Enter'''.

Press '''Tab''' key for indentation and '''type''' the '''return''' statement as shown here.

|-

|| Mouse hover on the play button

| Press '''control''' and '''Enter''' to''' run''' the''' cell.'''

You can also''' click''' on the '''play button '''on the left of the coding bar to '''run''' the cell.

|-

|| New cell below

| The '''function''' is ready to use.

|-

|| Highlight the bold words as narrated
def create_greeting(name):

| The keyword '''def''' tells '''Python''' to create a '''function'''.

'''create under score greeting''' is the '''function''' name.

Every time you start a new '''function''', you’ll use '''def '''followed by the '''function’s''' name.

'''Name''' is the '''input''', also called a '''parameter'''.

'''Return''' sends a value back to the '''caller'''.

The''' f-string '''inserts the name into the sentence.

|-

|| Show on screen '''+ Code'''

print(create_greeting('Alex'))

| Now, press '''plus Code'''

A new cell will open.

You can call the '''function''' by typing the '''command''' shown on the '''screen'''.

Press '''Shift''' and '''Enter'''.

|-

|| Show output

| Here is the '''output''':''' Welcome, Alex!'''

|-

|| print(create_greeting('Asha'))

print(create_greeting('Rahul'))

| Pause the '''tutorial''' here. Try other names like ''''Asha'''' or ''''Rahul''''.

Observe the '''output''' and resume the '''tutorial'''.

|-

|| Show the outputs

| The '''function''' works for any name we provide.

|-

|| Show slide: Store the result

| Now, let us see how we can store the result in a '''variable'''.

|-

|| Show code block

greet = create_greeting('Sam')

| Open a new cell by clicking on '''plus Code. '''

If you already have a new cell, you may ignore this step.

Now pause the video and type the command as shown on the screen.

Press '''Shift''' and '''Enter'''.

|-

|| Show code block
print(greet)

| Next in a new cell type this.

press '''Shift''' and '''Enter'''.

The output is: '''Welcome Sam!'''

|-

|| Show slide: Common mistake

| Let us look at a common mistake we might make while using functions.

|-

|| print(create_greeting(Alex))

| Let me '''type''' the following '''code '''and press the play button to run it.

Do you notice the error?

|-

|| print(create_greeting(Alex))

print(create_greeting('Alex'))

| Can you tell what could be the possible reason?

Let me add our previous command next to it.

Now can you tell what was the mistake.

|-

|| Show fix

print(create_greeting('Alex')).

| Yes, always remember to use quotes around the value you want to print.

|-

|| print(create_greeting(‘Alex’))

| Another common mistake is when we forget to '''run''' the '''cell''' with '''def''' first.

If we do not '''run''' the '''cell''', '''python''' will not know that the '''function''' exists.

|-

|| print(create_greeting(‘Alex’))

| Now, when we run '''print open parenthesis create underscore greeting open parenthesis single quote Alex close quote close parenthesis and again close parenthesis'''

a '''NameError''' occurs.

|-

|| Show slide: Optional improvement

| To make our '''function''' better, let us add a default value to the parameter.

This allows the '''function''' to work without a name.

|-

|| Show code block

def create_greeting(name='Friend'):

| Let us understand this with the '''code''' that we used earlier in this tutorial

We start with '''def''', followed by the function name.

Inside the parenthesis, we see; '''name equals 'Friend''''.

'''Name''' is our parameter or input variable.

''''Friend'''' is the '''default value'''.

|-

|| Show code block

def create_greeting(name='Friend'):

| The next line starts with the '''return''' keyword.

This sends the formatted '''string''' back to the user.

|-

|| Show code block

def create_greeting(name='Friend'):

| Why do we use a default value?
It acts as a safety net for our code.

|-

|| print(create_greeting(‘Alex’))

| If we provide a name like ''''Alex'''', '''Python''' ignores the default and uses ''''Alex''''.

|-

|| print(create_greeting())

Output: Welcome, Friend!

| Now, let us call the '''function''' with empty brackets.

Type the '''command''' as shown and '''run''' the cell.

'''Python''' now uses the default value ''''Friend''''.

Default values prevent errors when input is missing.

|-

|| '''Summary slides'''

Summary of what we have learnt:

• Define a new function using def

• Call the function by its name

• Use parameters and return values

• Handle small coding errors

• Improve your function using a default parameter

| This brings us to the end of this '''tutorial'''.

Here is a summary of what we learnt.

• Define a new function using def

• Call the function by its name

• Use parameters and return values

• Handle small coding errors

• Improve your function using a default parameter

|-

|| '''Assignment slide'''
1) Create a function make_tagline(product)

2) It should return 'The best choice: {product_name}'.

3) Call it with three products of your choice.

4) Print each tagline on a new line.

| Here is an assignment

|-

|| Acknowledgement

| Thank you

|-

|| '''Closing slide'''
This ''' Spoken tutorial '''is brought to you by '''EduPyramids Educational Services Private Limited, SINE, IIT Bombay.'''

|

|-

|}

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Misbah: Created page with "{|border=1 |- || '''Visual Cue''' | '''Narration''' |- || Title Slide | Welcome to this '''Spoken''' '''tutorial''' on '''Python Functions in Google Colab. ''' |- || '..."