In 2023, Python and JavaScript are the most popular programming languages. Python is versatile and used for web development, CLI, GUI, game development, data science, automation, and software testing with a range of libraries and frameworks available for each domain. The document provides a comprehensive overview of the tools and libraries applicable within these categories of Python application.

1. Python Demand in 2023
Demand:
The most popular languages in 2023 are Python and JavaScript.
What can you do with python?
Develop Software
 Web Development
1. Django
2. FastAPI
3. Flask
4. Tornado
 CLI Development
1. Argparse
2. Click
3. Typer
 GUI Development
1. Kivy
2. PyQt
3. PySimpleGUI
4. Qt for Python
5. Tkinter
6. wxPython
 Game Development
1. Arcade
2. Pygame
3. pyglet

2. Data Science and Math
 Machine Learning
1. Keras
2. NLTK
3. PyTorch
4. Scikit-learn
5. TensorFlow
 Scientific Computing
1. Numpy
2. SciPy
3. SimPy
 Data Analysis and Visualization
1. Bokeh
2. Dash
3. Matplotib
4. Pandas
5. Seaborn
 Web Scraping
1. Beautiful Soup
2. Requests
3. Scrapy
4. Urllib.request
Automation
 DevOps
1. Ansible
2. Docker Compose
 Development Environment

3. 1. Conda
2. Pip
3. Pipenv
4. Pipx
5. Pyenv
 Software Packaging and Deployment
1. Flit
2. Poetry
3. PyInstaller
4. Setuptools
5. Twine
 Database Systems
1. MongoEngine – MongoDB
2. MySQL Connector/Python – MySQL
3. Psycopg – PostgreSQL
4. Pymongo – MongoDB
5. SQLAlchemy – SQL
6. Sqlite3 - SQLite
 Software Testing
1. Doctest
2. Pytest
3. Tox
4. Unittest