--- a/mercurial/posix.py	Thu Jan 16 13:34:04 2020 +0100
+++ b/mercurial/posix.py	Mon Feb 10 17:31:05 2020 -0500
@@ -324,9 +324,8 @@
                     open(fullpath, b'w').close()
                 except IOError as inst:
                     if (
-                        inst[0]  # pytype: disable=unsupported-operands
-                        == errno.EACCES
-                    ):
+                        inst[0] == errno.EACCES
+                    ):  # pytype: disable=unsupported-operands
                         # If we can't write to cachedir, just pretend
                         # that the fs is readonly and by association
                         # that the fs won't support symlinks. This