27. 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:

• 27.1. sys — System-specific parameters and functions
• 27.2. sysconfig — Provide access to Python’s configuration information
  • 27.2.1. Configuration variables
  • 27.2.2. Installation paths
  • 27.2.3. Other functions
  • 27.2.4. Using sysconfig as a script
• 27.3. builtins — Built-in objects
• 27.4. __main__ — Top-level script environment
• 27.5. warnings — Warning control
  • 27.5.1. Warning Categories
  • 27.5.2. The Warnings Filter
    • 27.5.2.1. Default Warning Filters
  • 27.5.3. Temporarily Suppressing Warnings
  • 27.5.4. Testing Warnings
  • 27.5.5. Updating Code For New Versions of Python
  • 27.5.6. Available Functions
  • 27.5.7. Available Context Managers
• 27.6. contextlib — Utilities for with-statement contexts
• 27.7. abc — Abstract Base Classes
• 27.8. atexit — Exit handlers
  • 27.8.1. atexit Example
• 27.9. traceback — Print or retrieve a stack traceback
  • 27.9.1. Traceback Examples
• 27.10. __future__ — Future statement definitions
• 27.11. gc — Garbage Collector interface
• 27.12. inspect — Inspect live objects
  • 27.12.1. Types and members
  • 27.12.2. Retrieving source code
  • 27.12.3. Classes and functions
  • 27.12.4. The interpreter stack
  • 27.12.5. Fetching attributes statically
  • 27.12.6. Current State of a Generator
• 27.13. site — Site-specific configuration hook
• 27.14. fpectl — Floating point exception control
  • 27.14.1. Example
  • 27.14.2. Limitations and other considerations
• 27.15. distutils — Building and installing Python modules