all Python 3platformfunction

platform.system()

system and machine

The OS name as a string: 'Linux', 'Windows', 'Darwin' (macOS), 'Java'; an empty string if unknown.

Syntax

platform.system()

macOS is called 'Darwin', not 'macOS', so system() == 'macOS' never matches. Unlike sys.platform ('linux', 'win32', 'darwin'), the value is capitalised and determined at run time rather than at build time; for branching that type checkers understand, sys.platform is the convention.

Examples

import platform
print(platform.system())  # → ? Linux, Windows или Darwin
print(platform.system() in {'Linux', 'Windows', 'Darwin'})  # → ? True на обычных ОС
print(platform.system() == 'macOS')  # → False — macOS называется Darwin

See also

Open in the full glossarydocs.python.orgReport an inaccuracy