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29. Python Runtime Services
The modules described in this chapter provide a wide range of services related to the Python interpreter and its interaction with its environment. Here’s an overview:
- 29.1. sys — System-specific parameters and functions
- 29.2. sysconfig — Provide access to Python’s configuration information
- 29.3. builtins — Built-in objects
- 29.4. __main__ — Top-level script environment
- 29.5. warnings — Warning control
- 29.6. contextlib — Utilities for with-statement contexts
- 29.6.1. Utilities
- 29.6.2. Examples and Recipes
- 29.6.2.1. Supporting a variable number of context managers
- 29.6.2.2. Simplifying support for single optional context managers
- 29.6.2.3. Catching exceptions from __enter__ methods
- 29.6.2.4. Cleaning up in an __enter__ implementation
- 29.6.2.5. Replacing any use of try-finally and flag variables
- 29.6.2.6. Using a context manager as a function decorator
- 29.6.3. Single use, reusable and reentrant context managers
- 29.7. abc — Abstract Base Classes
- 29.8. atexit — Exit handlers
- 29.9. traceback — Print or retrieve a stack traceback
- 29.10. __future__ — Future statement definitions
- 29.11. gc — Garbage Collector interface
- 29.12. inspect — Inspect live objects
- 29.13. site — Site-specific configuration hook
- 29.14. fpectl — Floating point exception control