Clarify os.strerror()s exception behavior.

2008-05-11 21:16:37 +00:00 · 2008-05-11 21:16:37 +00:00 · 3fc974f2d4
parent 627a666db0
commit 3fc974f2d4
1 changed files with 2 additions and 1 deletions
--- 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)