Course Content

Learn Python from Scratch

1. The basics

Hello, World!Hello, me!Variables Comments Indentation Numbers and strings

2. Arithmetic operations

Addition Multiplication and power Division and whole part division

3. Common data types

Data types Numbers float and int Storing text Strings slicing Concatenation

4. Conditional statements

Boolean data type Combining conditions Simple 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 functions Writing 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

Comments

Before moving further, quick thing to learn: comments. Comment is a part of code which is not executed (ignored by the program). Comments are used as notes that developers leave for themselves or other users.

In Python there are single-line comments and multi-line comments (used less often).

Single-line comment start with symbol #. If placed at the beggining of the line entire line is ignored.


              12
            
# this is a comment that I left as a note for myself
print("Hello, World!")

Comments can be placed at any position of any line. Anything before # sign will be executed, anything after # sign will be ignored.


              1
            
print("Hello, world!") # Comments can be very helpful

You can switch certain lines of code off by just placing a # sign (turning it into a comment).


              12
            
# print("Hello, Mary!")
print("Hello, Jane!")

Task

Switch off second ling of code by turning it into a comment.

Task

Switch off second ling of code by turning it into a comment.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 1. Chapter 4

Comments

In Python there are single-line comments and multi-line comments (used less often).

Single-line comment start with symbol #. If placed at the beggining of the line entire line is ignored.


              12
            
# this is a comment that I left as a note for myself
print("Hello, World!")

Comments can be placed at any position of any line. Anything before # sign will be executed, anything after # sign will be ignored.


              1
            
print("Hello, world!") # Comments can be very helpful

You can switch certain lines of code off by just placing a # sign (turning it into a comment).


              12
            
# print("Hello, Mary!")
print("Hello, Jane!")

Task

Switch off second ling of code by turning it into a comment.

Task

Switch off second ling of code by turning it into a comment.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 1. Chapter 4

Comments

In Python there are single-line comments and multi-line comments (used less often).

Single-line comment start with symbol #. If placed at the beggining of the line entire line is ignored.


              12
            
# this is a comment that I left as a note for myself
print("Hello, World!")

Comments can be placed at any position of any line. Anything before # sign will be executed, anything after # sign will be ignored.


              1
            
print("Hello, world!") # Comments can be very helpful

You can switch certain lines of code off by just placing a # sign (turning it into a comment).


              12
            
# print("Hello, Mary!")
print("Hello, Jane!")

Task

Switch off second ling of code by turning it into a comment.

Task

Switch off second ling of code by turning it into a comment.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

In Python there are single-line comments and multi-line comments (used less often).

Single-line comment start with symbol #. If placed at the beggining of the line entire line is ignored.


              12
            
# this is a comment that I left as a note for myself
print("Hello, World!")

Comments can be placed at any position of any line. Anything before # sign will be executed, anything after # sign will be ignored.


              1
            
print("Hello, world!") # Comments can be very helpful

You can switch certain lines of code off by just placing a # sign (turning it into a comment).


              12
            
# print("Hello, Mary!")
print("Hello, Jane!")

Task

Switch off second ling of code by turning it into a comment.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 1. Chapter 4

Switch to desktop for real-world practiceContinue from where you are using one of the options below