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-rw-r--r--Lib/argparse.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py
index 690b2a9..4506a5e 100644
--- a/Lib/argparse.py
+++ b/Lib/argparse.py
@@ -2328,7 +2328,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
action = self._option_string_actions[option_string]
tup = action, option_string, '', short_explicit_arg
result.append(tup)
- elif option_string.startswith(option_prefix):
+ elif self.allow_abbrev and option_string.startswith(option_prefix):
action = self._option_string_actions[option_string]
tup = action, option_string, None, None
result.append(tup)