sys – System-specific Configuration¶

The sys module includes a collection of services for probing or changing the configuration of the interpreter at runtime and resources for interacting with the operating environment outside of the current program.

• Interpreter Settings
  • Build-time Version Information
  • Install Location
  • Command Line Options
  • Unicode Defaults
  • Interactive Prompts
  • Display Hook
• Runtime Environment
  • Arguments to Your Program
  • Input and Output Steams
  • Returning Status
• Memory Management and Limits
  • Reference Counts
  • Object Size
  • Recursion
  • Maximum Values
  • Floating Point Values
• Exception Handling
  • Unhandled Exceptions
  • Current Exception
  • Previous Interactive Exception
• Tracing Your Program As It Runs
  • Tracing Function Calls
  • Tracing Inside Functions
  • Watching the Stack
  • Exception Propagation
• Low-level Thread Support
  • Check Interval
  • Debugging
• Modules and Imports
  • Imported Modules
  • Built-in Modules
  • Import Path
  • Custom Importers
  • Importer Cache
  • Meta Path