+22
-1
lines changedFilter options
+22
-1
lines changed Original file line number Diff line number Diff line change
@@ -877,6 +877,25 @@ def test_showwarning(self):
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file_object, expected_file_line)
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self.assertEqual(expect, file_object.getvalue())
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def test_formatwarning_override(self):
881 +
# bpo-35178: Test that a custom formatwarning function gets the 'line'
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# argument as a positional argument, and not only as a keyword argument
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def myformatwarning(message, category, filename, lineno, text):
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return f'm={message}:c={category}:f={filename}:l={lineno}:t={text}'
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file_name = os.path.splitext(warning_tests.__file__)[0] + '.py'
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line_num = 3
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file_line = linecache.getline(file_name, line_num).strip()
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message = 'msg'
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category = Warning
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file_object = StringIO()
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expected = f'm={message}:c={category}:f={file_name}:l={line_num}' + \
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f':t={file_line}'
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with support.swap_attr(self.module, 'formatwarning', myformatwarning):
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self.module.showwarning(message, category, file_name, line_num,
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file_object, file_line)
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self.assertEqual(file_object.getvalue(), expected)
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class CWarningsDisplayTests(WarningsDisplayTests, unittest.TestCase):
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module = c_warnings
@@ -124,7 +124,7 @@ def _formatwarnmsg(msg):
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if fw is not _formatwarning_orig:
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# warnings.formatwarning() was replaced
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return fw(msg.message, msg.category,
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msg.filename, msg.lineno, line=msg.line)
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msg.filename, msg.lineno, msg.line)
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return _formatwarnmsg_impl(msg)
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def filterwarnings(action, message="", category=Warning, module="", lineno=0,
@@ -0,0 +1,2 @@
1 +
Ensure custom :func:`warnings.formatwarning` function can receive `line` as
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positional argument. Based on patch by Tashrif Billah.
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