Make test.regrtest.__file__ absolute, this was not always the case when running profile or trace, for example. (issue #9323)
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 308baf4..366cedf 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -1458,7 +1458,13 @@
return self.expected
if __name__ == '__main__':
- # Simplification for findtestdir().
+ # findtestdir() gets the dirname out of __file__, so we have to make it
+ # absolute before changing the working directory.
+ # For example __file__ may be relative when running trace or profile.
+ # See issue #9323.
+ __file__ = os.path.abspath(__file__)
+
+ # sanity check
assert __file__ == os.path.abspath(sys.argv[0])
# When tests are run from the Python build directory, it is best practice