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-rw-r--r--coverage/cmdline.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/coverage/cmdline.py b/coverage/cmdline.py
index a83d619e..89420241 100644
--- a/coverage/cmdline.py
+++ b/coverage/cmdline.py
@@ -241,6 +241,8 @@ class CmdOptionParser(CoverageOptionParser):
# results, and they will compare equal to objects.
return (other == "<CmdOptionParser:%s>" % self.cmd)
+ __hash__ = None # This object doesn't need to be hashed.
+
def get_prog_name(self):
"""Override of an undocumented function in optparse.OptionParser."""
program_name = super(CmdOptionParser, self).get_prog_name()