Python Enhancement Proposals

• PEPs
• PEP 508 – Dependency specification for Python Software Packages
  • Environment Markers
    • python_version - '.'.join(platform.python_version_tuple()[:2]) - 3.4, 2.7
    • python_full_version
    • os_name - os.name - posix, java
    • sys_platform - sys.platform - linux
    • platform_release - platform.release() - 5.4.0-42-generic
    • platform_system - platform.system() - Linux, Windows, Java
    • platform_version - platform.version() - #42-Ubuntu SMP Fri Jan 15 12:00:00 UTC 2021
    • platform_machine - platform.machine() - x86_64
    • platform_python_implementation - platform.python_implementation() - CPython, Jython
    • implementation_name - sys.implementation.name - cpython
    • implementation_version - 3.4.0, 3.5.0b1
    • extra - test