Prevent race condition with mkdir in distutils. Patch by Arfrever on #9281.
diff --git a/Lib/distutils/dir_util.py b/Lib/distutils/dir_util.py
index 54376e5..c7c9fcc 100644
--- a/Lib/distutils/dir_util.py
+++ b/Lib/distutils/dir_util.py
@@ -69,10 +69,11 @@
if not dry_run:
try:
os.mkdir(head, mode)
- created_dirs.append(head)
except OSError as exc:
- raise DistutilsFileError(
- "could not create '%s': %s" % (head, exc.args[-1]))
+ if not (exc.errno == errno.EEXIST and os.path.isdir(head)):
+ raise DistutilsFileError(
+ "could not create '%s': %s" % (head, exc.args[-1]))
+ created_dirs.append(head)
_path_created[abs_head] = 1
return created_dirs