From 3b388ec8b3a45ae45c0934ac04627e247762293c Mon Sep 17 00:00:00 2001 From: "Andrew M. Kuchling" Date: Fri, 1 Feb 2002 18:29:34 +0000 Subject: [Bug #220993; may also fix bug #479469] Fix flakiness when old installations are present, by always unlinking the destination file before copying to it. Without the unlink(), the copied file remains owned by its previous UID, causing the subsequent chmod() to fail. Bugfix candidate, though it may cause changes on platforms where file ownership behaves differently. --- Lib/distutils/file_util.py | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Lib/distutils/file_util.py b/Lib/distutils/file_util.py index 526e4cf..14772fb 100644 --- a/Lib/distutils/file_util.py +++ b/Lib/distutils/file_util.py @@ -36,6 +36,13 @@ def _copy_file_contents (src, dst, buffer_size=16*1024): raise DistutilsFileError, \ "could not open '%s': %s" % (src, errstr) + if os.path.exists(dst): + try: + os.unlink(dst) + except os.error, (errno, errstr): + raise DistutilsFileError, \ + "could not delete '%s': %s" % (dst, errstr) + try: fdst = open(dst, 'wb') except os.error, (errno, errstr): -- cgit v0.12