all Python 3osfunction

os.strerror

os — system

Return the text message for an errno error code.

Syntax

os.strerror(code)

For an unknown error code Linux and macOS do not raise but return a string like 'Unknown error 99999'; on platforms where the C strerror returns NULL, ValueError is raised. The text depends on the system and its locale, so never compare messages in code — compare numbers via the errno module. An OSError already carries the same description in its strerror attribute.

Examples

import os
import errno
print(os.strerror(2))  # → No such file or directory
print(os.strerror(errno.EACCES))  # → Permission denied
print(OSError(2, os.strerror(2), 'data.csv'))  # → [Errno 2] No such file or directory: 'data.csv'
print(os.strerror(9999))  # → текст для неизвестного кода зависит от ОС, например Unknown error 9999 (на части платформ — ValueError)

See also

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