Fix issues with getting tempdir when unknown uid

cancan101 · cancan101 · commit c041352efdbb · 2016-02-01T15:09:21.000-05:00
Closes #5940
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -553,7 +553,13 @@ def _create_tmp_config_dir():
         # Some restricted platforms (such as Google App Engine) do not provide
         # gettempdir.
         return None
-    tempdir = os.path.join(tempdir, 'matplotlib-%s' % getpass.getuser())
+
+    try:
+        username = getpass.getuser()
+    except KeyError:
+        username = str(os.getuid())
+    tempdir = os.path.join(tempdir, 'matplotlib-%s' % username)
+
     os.environ['MPLCONFIGDIR'] = tempdir
 
     mkdirs(tempdir)
