Message 314983 - Python tracker

FWIW, I encountered the same kind of issue when using the mkstemp() function: under the hood, it calls gettempdir() and this one is protected by a lock too.

Current thread 0x00007ff10231f700 (most recent call first):
   File "/usr/lib/python3.5/tempfile.py", line 432 in gettempdir
   File "/usr/lib/python3.5/tempfile.py", line 269 in _sanitize_params
   File "/usr/lib/python3.5/tempfile.py", line 474 in mkstemp