What you'll learn in this Python modules & packages tutorial

This interactive Python tutorial has 8 hands-on exercises. Estimated time: 18 minutes.

1. The standard library — free tools, no install — Python ships with hundreds of built-in modules — the standard library. Math, file system, dates, random numbers, network…
2. from import — no prefix needed — `from module import name` imports just what you need — no module prefix required:
3. import as — shorter names — `import module as alias` gives the module a shorter nickname:
4. os — your file system, your rules — The `os` module gives you access to the operating system — file paths, environment variables, directory listing, file ex…
5. sys — talking to the interpreter — `sys` gives you information about Python itself:
6. collections — data structure superpowers — `collections` extends Python's built-in containers:
7. __name__ == "__main__" — the essential guard — When Python runs a file directly, `__name__` is `"__main__"`.
8. Build a file utility — Final challenge — no starter code.

Python Modules & Packages concepts covered

• Organize your code