[Python-checkins] bpo-37785: Fix xgettext warning in argparse (GH-15161)

[Julien Palard]

https://github.com/python/cpython/commit/42671aea2db6cbc54369617da0fd3545048e0a45
commit: 42671aea2db6cbc54369617da0fd3545048e0a45
branch: master
author: Jakub Kulík <Kulikjak at gmail.com>
committer: Julien Palard <julien at palard.fr>
date: 2019-09-13T11:25:32+02:00
summary:

bpo-37785: Fix xgettext warning in argparse (GH-15161)

files:
A Misc/NEWS.d/next/Library/2019-08-07-14-49-22.bpo-37785.y7OlT8.rst
M Lib/argparse.py

diff --git a/Lib/argparse.py b/Lib/argparse.py
index 2e46e76a4997..370692bd1bf4 100644
--- a/Lib/argparse.py
+++ b/Lib/argparse.py
@@ -1214,8 +1214,9 @@ def __call__(self, string):
             return open(string, self._mode, self._bufsize, self._encoding,
                         self._errors)
         except OSError as e:
-            message = _("can't open '%s': %s")
-            raise ArgumentTypeError(message % (string, e))
+            args = {'filename': string, 'error': e}
+            message = _("can't open '%(filename)s': %(error)s")
+            raise ArgumentTypeError(message % args)
 
     def __repr__(self):
         args = self._mode, self._bufsize
diff --git a/Misc/NEWS.d/next/Library/2019-08-07-14-49-22.bpo-37785.y7OlT8.rst b/Misc/NEWS.d/next/Library/2019-08-07-14-49-22.bpo-37785.y7OlT8.rst
new file mode 100644
index 000000000000..2d3aa4f9a75a
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-08-07-14-49-22.bpo-37785.y7OlT8.rst
@@ -0,0 +1 @@
+Fix xgettext warnings in :mod:`argparse`.