Björn Ricks A personal Blog.

Mon 04 March 2024

Understanding Context Manager and its Syntastic Sugar

The Context Manager is one of my favorite features in Python. It can be used for all kind of interesting things around blocks of code. This article gives a background about the origins of the context manager, which problem it solves and how to use it.

  • Origins
  • Context Manager Protocol
  • The With Statement as Syntastic Sugar
  • Implementing a Context Manager using contextlib
  • Capture the Call Flow
  • Example Context Managers
    • Example 1 - Redirect Stdout
    • Example 2 - Suppress Exceptions
    • Example 3 - Add a directory to the Python module search path temporarily
    • Example 4 - Print Prefix
  • Links
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