Python

Automate file renaming with os and shutil — Python tutorial, lesson 74. Hands-on steps, troubleshooting, and next steps.

Learn how to read, set, and manage environment variables using Python's os.environ module in this practical tutorial.

Explore Python generators: lazy iterators, generator expressions, and when to use them. Practical tutorial with examples for memory-efficient iteration.

Master itertools for efficient looping in Python. This hands-on tutorial covers core concepts, step-by-step examples, and practical exercises to optimize your loops and prepare for advanced topics.

Learn to implement decorators for cross-cutting concerns in Python. This lesson covers using decorators to handle logging, timing, and other aspect-oriented tasks cleanly and reuse code effectively.

Apply functools.partial to fix function arguments and use caching to speed up repeated calls — a practical Python skill.

Learn to create custom iterators with __iter__ and __next__ in Python. Step-by-step guide with hands-on examples, troubleshooting, and next steps.

Learn to use context managers and the 'with' statement in Python for resource management, with hands-on exercises and troubleshooting.

Profile code with cProfile and timeit in Python.

Learn to write unit tests using Python's unittest module. This hands-on lesson covers core concepts, step-by-step walkthroughs, and troubleshooting for reliable code testing.

Mock external dependencies in tests: learn to isolate your Python code by replacing external services and APIs with controlled mock objects. This hands-on tutorial covers the core concept, step-by-step implementation, comparison with alternatives, troubleshooting edge cases, and next steps.

Master debugging with pdb and post-mortem inspection in Python. This lesson covers core concepts, step-by-step walkthroughs, troubleshooting, and practical exercises for effective debugging.