(partially)

Merged revisions 79534,79537,79539,79558,79606 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r79534 | florent.xicluna | 2010-03-31 23:21:54 +0200 (mer, 31 mar 2010) | 2 lines

  Fix test for xml.etree when using a non-ascii path.  And use check_warnings instead of catch_warnings.
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  r79537 | florent.xicluna | 2010-03-31 23:40:32 +0200 (mer, 31 mar 2010) | 2 lines

  Fix typo
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  r79539 | florent.xicluna | 2010-04-01 00:01:03 +0200 (jeu, 01 avr 2010) | 2 lines

  Replace catch_warnings with check_warnings when it makes sense.  Use assertRaises context manager to simplify some tests.
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  r79558 | florent.xicluna | 2010-04-01 20:17:09 +0200 (jeu, 01 avr 2010) | 2 lines

  #7092: Fix some -3 warnings, and fix Lib/platform.py when the path contains a double-quote.
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  r79606 | florent.xicluna | 2010-04-02 19:26:42 +0200 (ven, 02 avr 2010) | 2 lines

  Backport some robotparser test and skip the test if the external resource is not available.
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diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py
index a140f1c..85513a5 100644
--- a/Lib/test/test_argparse.py
+++ b/Lib/test/test_argparse.py
@@ -7,7 +7,6 @@
 import textwrap
 import tempfile
 import unittest
-import warnings
 import argparse
 
 from io import StringIO
@@ -4150,21 +4149,12 @@
             self.assertTrue(hasattr(argparse, name))
 
 def test_main():
-    with warnings.catch_warnings():
-        # silence warnings about version argument - these are expected
-        warnings.filterwarnings(
-            action='ignore',
-            message='The "version" argument to ArgumentParser is deprecated.',
-            category=DeprecationWarning)
-        warnings.filterwarnings(
-            action='ignore',
-            message='The format_version method is deprecated',
-            category=DeprecationWarning)
-        warnings.filterwarnings(
-            action='ignore',
-            message='The print_version method is deprecated',
-            category=DeprecationWarning)
-
+    # silence warnings about version argument - these are expected
+    with support.check_warnings(
+            ('The "version" argument to ArgumentParser is deprecated.',
+             DeprecationWarning),
+            ('The (format|print)_version method is deprecated',
+             DeprecationWarning)):
         support.run_unittest(__name__)
     # Remove global references to avoid looking like we have refleaks.
     RFile.seen = {}