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| -rw-r--r-- | Doc/library/os.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 0790f64..b2d8f80 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -285,7 +285,8 @@ process and user. .. function:: strerror(code) Return the error message corresponding to the error code in *code*. - Availability: Unix, Windows. + On platforms where :cfunc:`strerror` returns ``NULL`` when given an unknown + error number, :exc:`ValueError` is raised. Availability: Unix, Windows. .. function:: umask(mask) |