🐍 30 Days Of Python

# Day	Topics
01	Introduction
02	Variables, Built-in Functions
03	Operators
04	Strings
05	Lists
06	Tuples
07	Sets
08	Dictionaries
09	Conditionals
10	Loops
11	Functions
12	Modules
13	List Comprehension
14	Higher Order Functions
15	Python Type Errors
16	Python Date time
17	Exception Handling
18	Regular Expressions
19	File Handling
20	Python Package Manager
21	Classes and Objects
22	Web Scraping
23	Virtual Environment
24	Statistics
25	Pandas
26	Python web
27	Python with MongoDB
28	API
29	Building API
30	Conclusions

🧡🧡🧡 HAPPY CODING 🧡🧡🧡

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Author: Asabeneh Yetayeh Second Edition: July, 2021

🇧🇷 Portuguese 🇨🇳 中文 🇫🇷French Day 2 >>

• 🐍 30 Days Of Python
  • 🙌 Become a Sponsor
• 📘 Day 1
  • Welcome
  • Introduction
  • Why Python ?
  • Environment Setup
    • Installing Python
    • Python Shell
    • Installing Visual Studio Code
      • How to use visual studio code
  • Basic Python
    • Python Syntax
    • Python Indentation
    • Comments
    • Data types
      • Number
      • String
      • Booleans
      • List
      • Dictionary
      • Tuple
      • Set
    • Checking Data types
    • Python File
  • 💻 Exercises - Day 1
    • Exercise: Level 1

📘 Day 1

Welcome

Congratulations for deciding to participate in a 30 days of Python programming challenge. In this challenge, you will learn everything you need to be a python programmer and the whole concept of programming. In the end of the challenge you will get a 30DaysOfPython programming challenge certificate.

If you would like to actively engage in the challenge, you may join the 30DaysOfPython challenge telegram group.

Introduction

Python is a high-level programming language for general-purpose programming. It is an open source, interpreted, object-oriented programming language. Python was created by a Dutch programmer, Guido van Rossum. The name of the Python programming language was derived from a British sketch comedy series, Monty Python's Flying Circus. The first version was released on February 20, 1991. This 30 days of Python challenge will help you learn the latest version of Python, Python 3 step by step. The topics are broken down into 30 days, where each day contains several topics with easy-to-understand explanations, real-world examples, and many hands on exercises and projects.

This challenge is designed for beginners and professionals who want to learn python programming language. It may take 30 to 100 days to complete the challenge. People who actively participate in the telegram group have a high probability of completing the challenge.

This challenge is easy to read, written in conversational English, engaging, motivating and at the same time, it is very demanding. You need to allocate much time to finish this challenge. If you are a visual learner, you may get the video lesson on Washera YouTube channel. You may start from Python for Absolute Beginners video. Subscribe the channel, comment and ask questions on YouTube videos and be proactive, the author will eventually notice you.

The author likes to hear your opinion about the challenge, share the author by expressing your thoughts about the 30DaysOfPython challenge. You can leave your testimonial on this link

Why Python ?

It is a programming language which is very close to human language and because of that, it is easy to learn and use. Python is used by various industries and companies (including Google). It has been used to develop web applications, desktop applications, system administration, and machine learning libraries. Python is a highly embraced language in the data science and machine learning community. I hope this is enough to convince you to start learning Python. Python is eating the world and you are killing it before it eats you.

Environment Setup

Installing Python

To run a python script you need to install python. Let's download python. If your are a windows user, click the button encircled in red.

If you are a macOS user, click the button encircled in red.

To check if python is installed write the following command on your device terminal.

python3 --version

As you can see from the terminal, I am using Python 3.7.5 version at the moment. Your version of Python might be different from mine by but it should be 3.6 or above. If you manage to see the python version, well done. Python has been installed on your machine. Continue to the next section.

Python Shell

Python is an interpreted scripting language, so it does not need to be compiled. It means it executes the code line by line. Python comes with a Python Shell (Python Interactive Shell). It is used to execute a single python command and get the result.

Python Shell waits for the Python code from the user. When you enter the code, it interprets the code and shows the result in the next line. Open your terminal or command prompt(cmd) and write:

python

The Python interactive shell is opened and it is waiting for you to write Python code(Python script). You will write your Python script next to this symbol >>> and then click Enter. Let us write our very first script on the Python scripting shell.

Well done, you wrote your first Python script on Python interactive shell. How do we close the Python interactive shell ? To close the shell, next to this symbol >>> write exit() command and press Enter.

Now, you know how to open the Python interactive shell and how to exit from it.

Python will give you results if you write scripts that Python understands, if not it returns errors. Let's make a deliberate mistake and see what Python will return.

As you can see from the returned error, Python is so clever that it knows the mistake we made and which was Syntax Error: invalid syntax. Using x as multiplication in Python is a syntax error because (x) is not a valid syntax in Python. Instead of (x) we use asterisk (*) for multiplication. T