From 4aa4f0906df9fc9c6c6f6657f2c521468c6b1688 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 5 Feb 2024 22:42:43 +0200
Subject: gh-109475: Fix support of explicit option value "--" in argparse
 (GH-114814)

For example "--option=--".
---
 Lib/argparse.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Lib/argparse.py')

diff --git a/Lib/argparse.py b/Lib/argparse.py
index 9e19f39fadd..2131d729746 100644
--- a/Lib/argparse.py
+++ b/Lib/argparse.py
@@ -2485,7 +2485,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
     # ========================
     def _get_values(self, action, arg_strings):
         # for everything but PARSER, REMAINDER args, strip out first '--'
-        if action.nargs not in [PARSER, REMAINDER]:
+        if not action.option_strings and action.nargs not in [PARSER, REMAINDER]:
             try:
                 arg_strings.remove('--')
             except ValueError:
-- 
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