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Learn Python from Scratch
course content

Course Content

Learn Python from Scratch

Learn Python from Scratch

1. The basics
Hello, World!Hello, me!VariablesCommentsIndentationNumbers and strings
2. Arithmetic operations
AdditionMultiplication and powerDivision and whole part division
3. Common data types
Data typesNumbersfloat and intStoring textStrings slicingConcatenation
4. Conditional statements
Boolean data typeCombining conditionsSimple if/else expressions (1/2)Simple if/else expressions (2/2)If/else expressions with multiple conditions (1/2)If/else expressions with multiple conditions (2/2)
5. Other data types
Lists (1/3)Lists (2/3)Lists (3/3)Tuples (1/3)Tuples (2/3)Tuples (3/3)Dictionaries (1/2)Dictionaries (2/2)
6. Loops
while loop (1/2)while loop (2/2)for loop (1/5)for loop (2/5)for loop (3/5)for loop (4/5)for loop (5/5)
7. Functions
Built-in functionsWriting your own functions (1/5)Writing your own functions (2/5)Writing your own functions (3/5)Writing your own functions (4/5)Writing your own functions (5/5)lambda functions

bookIndentation

Python is easy about rules, but indentation is one of the few rules Python requires to observe.

All lines in a simple Python program should start at character 0 in every line (no tabs or spaces before code).

HOWEVER, certain blocks of code should use Indentation. The most common blocks that require Intentation are: conditional statements, functions and loops (more on this in the following chapters).

Example of a valid code:


              
123

            
#Example of valid code:
print("Hello, world!")
print("What a beautiful day!")
copy

Below is example of invalid code, it will throw on error (feel free to try). When you try to execute this program you will see error "IndentationError: unexpected indent", this means you broke the Indentation rules and need to fix it to execute the program.


              
123

            
#Example of invalid code:
print("Hello, world!")
	print("What a beautiful day!")
copy

Please note that empty lines are simply ignored. Use empty lines to separate code into blocks (make it more readable).

Task

Analyze the code snippet on the right and fix it

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 5
toggle bottom row

bookIndentation

Python is easy about rules, but indentation is one of the few rules Python requires to observe.

All lines in a simple Python program should start at character 0 in every line (no tabs or spaces before code).

HOWEVER, certain blocks of code should use Indentation. The most common blocks that require Intentation are: conditional statements, functions and loops (more on this in the following chapters).

Example of a valid code:


              
123

            
#Example of valid code:
print("Hello, world!")
print("What a beautiful day!")
copy

Below is example of invalid code, it will throw on error (feel free to try). When you try to execute this program you will see error "IndentationError: unexpected indent", this means you broke the Indentation rules and need to fix it to execute the program.


              
123

            
#Example of invalid code:
print("Hello, world!")
	print("What a beautiful day!")
copy

Please note that empty lines are simply ignored. Use empty lines to separate code into blocks (make it more readable).

Task

Analyze the code snippet on the right and fix it

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 5
toggle bottom row

bookIndentation

Python is easy about rules, but indentation is one of the few rules Python requires to observe.

All lines in a simple Python program should start at character 0 in every line (no tabs or spaces before code).

HOWEVER, certain blocks of code should use Indentation. The most common blocks that require Intentation are: conditional statements, functions and loops (more on this in the following chapters).

Example of a valid code:


              
123

            
#Example of valid code:
print("Hello, world!")
print("What a beautiful day!")
copy

Below is example of invalid code, it will throw on error (feel free to try). When you try to execute this program you will see error "IndentationError: unexpected indent", this means you broke the Indentation rules and need to fix it to execute the program.


              
123

            
#Example of invalid code:
print("Hello, world!")
	print("What a beautiful day!")
copy

Please note that empty lines are simply ignored. Use empty lines to separate code into blocks (make it more readable).

Task

Analyze the code snippet on the right and fix it

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Python is easy about rules, but indentation is one of the few rules Python requires to observe.

All lines in a simple Python program should start at character 0 in every line (no tabs or spaces before code).

HOWEVER, certain blocks of code should use Indentation. The most common blocks that require Intentation are: conditional statements, functions and loops (more on this in the following chapters).

Example of a valid code:


              
123

            
#Example of valid code:
print("Hello, world!")
print("What a beautiful day!")
copy

Below is example of invalid code, it will throw on error (feel free to try). When you try to execute this program you will see error "IndentationError: unexpected indent", this means you broke the Indentation rules and need to fix it to execute the program.


              
123

            
#Example of invalid code:
print("Hello, world!")
	print("What a beautiful day!")
copy

Please note that empty lines are simply ignored. Use empty lines to separate code into blocks (make it more readable).

Task

Analyze the code snippet on the right and fix it

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 1. Chapter 5
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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