The list of Python Modules and their uses are:
✅ Built-in (Standard Library) Modules
(these come pre-installed with Python)
- os → Interact with operating system (files, paths, environment).
- sys → System-specific functions (command-line arguments, interpreter info).
- math → Mathematical functions (sqrt, factorial, trigonometry).
- random → Generate random numbers, shuffle, choices.
- datetime → Work with dates and times.
- time → Time-related functions (sleep, timestamps).
- json → Parse & write JSON data.
- re → Regular expressions (pattern matching).
- collections → Specialized data structures (Counter, defaultdict, deque).
- itertools → Tools for iterators (permutations, combinations, infinite loops).
- functools → Higher-order functions (reduce, lru_cache, partial).
- statistics → Basic statistics (mean, median, stdev).
- subprocess → Run external programs/commands.
- http.client / urllib → Work with HTTP requests.
- argparse → Build command-line interfaces.
- shutil → File operations (copy, move, delete).
- pickle → Serialize and deserialize Python objects.
✅ Data Science & ML Modules
(need to be installed separately with pip)
- numpy → Numerical computing, arrays, linear algebra.
- pandas → Data manipulation & analysis (DataFrames).
- matplotlib → Data visualization (charts, plots).
- seaborn → Advanced statistical visualization.
- scipy → Scientific computing, advanced math & stats.
- scikit-learn → Machine learning (classification, regression, clustering).
- tensorflow / pytorch → Deep learning frameworks.
- statsmodels → Statistical models & hypothesis testing.
✅ Web Development Modules
- flask → Lightweight web framework.
- django → Full-featured web framework.
- fastapi → Modern API development.
- requests → HTTP requests (GET, POST).
- beautifulsoup4 (bs4) → Web scraping.
- selenium → Browser automation.
✅ Automation & Scripting Modules
- pyautogui → Automate keyboard & mouse actions.
- schedule → Task scheduling.
- logging → Logging and debugging.
- configparser → Handle configuration files.
✅ Data Storage & Database Modules
- sqlite3 → Lightweight database.
- sqlalchemy → Database ORM (Object Relational Mapper).
- pymongo → Work with MongoDB.
- mysql-connector-python → MySQL connector.
✅ Cybersecurity & Networking Modules
- hashlib → Hashing (MD5, SHA).
- socket → Network programming (TCP/UDP).
- cryptography → Encryption & security.
- paramiko → SSH automation.
✅ Other Useful Modules
- tkinter → GUI applications.
- pygame → Game development.
- openpyxl → Excel file reading/writing.
- reportlab → PDF generation.
- PIL / pillow → Image processing.
Click here for PDF cheat sheet of Python modules & uses (like a quick reference guide you can print).
