From 75ed90a4cf07cd9236b4ed52d1c7cf09810a1749 Mon Sep 17 00:00:00 2001 From: R David Murray Date: Sun, 22 Mar 2015 12:33:46 -0400 Subject: #23700: fix/improve comment --- Lib/tempfile.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Lib/tempfile.py b/Lib/tempfile.py index cb18ae6..5eafc1f 100644 --- a/Lib/tempfile.py +++ b/Lib/tempfile.py @@ -427,8 +427,10 @@ class _TemporaryFileWrapper: # iter() doesn't use __getattr__ to find the __iter__ method def __iter__(self): # Don't return iter(self.file), but yield from it to avoid closing - # file as long as it's being used as iterator, see issue #23000. - # XXX Also don't use "yield from"! + # file as long as it's being used as iterator (see issue #23700). We + # can't use 'yield from' here because iter(file) returns the file + # object itself, which has a close method, and thus the file would get + # closed when the generator is finalized, due to PEP380 semantics. for line in self.file: yield line -- cgit v0.12