Merged revisions 67428 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r67428 | benjamin.peterson | 2008-11-28 16:12:14 -0600 (Fri, 28 Nov 2008) | 57 lines

  Merged revisions 67384,67386-67387,67389-67390,67392,67399-67400,67403-67405,67426 via svnmerge from
  svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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    r67384 | benjamin.peterson | 2008-11-25 16:13:31 -0600 (Tue, 25 Nov 2008) | 4 lines

    don't duplicate calls to start_tree()

    RefactoringTool.pre_order values now holds a list of the fixers while pre_order_mapping holds the dict.
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    r67386 | benjamin.peterson | 2008-11-25 16:44:52 -0600 (Tue, 25 Nov 2008) | 1 line

    #4423 fix_imports was still replacing usage of a module if attributes were being used
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    r67387 | benjamin.peterson | 2008-11-25 16:47:54 -0600 (Tue, 25 Nov 2008) | 1 line

    fix broken test
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    r67389 | benjamin.peterson | 2008-11-25 17:13:17 -0600 (Tue, 25 Nov 2008) | 1 line

    remove compatibility code; we only cater to 2.5+
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    r67390 | benjamin.peterson | 2008-11-25 22:03:36 -0600 (Tue, 25 Nov 2008) | 1 line

    fix #3994; the usage of changed imports was fixed in nested cases
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    r67392 | benjamin.peterson | 2008-11-26 11:11:40 -0600 (Wed, 26 Nov 2008) | 1 line

    simpilfy and comment fix_imports
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    r67399 | benjamin.peterson | 2008-11-26 11:47:03 -0600 (Wed, 26 Nov 2008) | 1 line

    remove more compatibility code
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    r67400 | benjamin.peterson | 2008-11-26 12:07:41 -0600 (Wed, 26 Nov 2008) | 1 line

    set svn:ignore
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    r67403 | benjamin.peterson | 2008-11-26 13:11:11 -0600 (Wed, 26 Nov 2008) | 1 line

    wrap import
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    r67404 | benjamin.peterson | 2008-11-26 13:29:49 -0600 (Wed, 26 Nov 2008) | 1 line

    build the fix_imports pattern in compile_pattern, so MAPPING can be changed and reflected in the pattern
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    r67405 | benjamin.peterson | 2008-11-26 14:01:24 -0600 (Wed, 26 Nov 2008) | 1 line

    stop ugly messages about runtime errors being from printed
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    r67426 | benjamin.peterson | 2008-11-28 16:01:40 -0600 (Fri, 28 Nov 2008) | 5 lines

    don't replace a module name if it is in the middle of a attribute lookup

    This fix also stops module names from being replaced if they are not in an attribute lookup.
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1 files changed, 10 insertions, 0 deletions

diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py
index c6655a0..ec87a9d 100644
--- a/Lib/lib2to3/pytree.py
+++ b/Lib/lib2to3/pytree.py
@@ -11,6 +11,9 @@ There's also a pattern matching implementation here.
 
 __author__ = "Guido van Rossum <guido@python.org>"
 
+import sys
+from io import StringIO
+
 
 HUGE = 0x7FFFFFFF  # maximum repeat count, default max
 
@@ -655,6 +658,11 @@ class WildcardPattern(BasePattern):
         elif self.name == "bare_name":
             yield self._bare_name_matches(nodes)
         else:
+            # The reason for this is that hitting the recursion limit usually
+            # results in some ugly messages about how RuntimeErrors are being
+            # ignored.
+            save_stderr = sys.stderr
+            sys.stderr = StringIO()
             try:
                 for count, r in self._recursive_matches(nodes, 0):
                     if self.name:
@@ -667,6 +675,8 @@ class WildcardPattern(BasePattern):
                     if self.name:
                         r[self.name] = nodes[:count]
                     yield count, r
+            finally:
+                sys.stderr = save_stderr
 
     def _iterative_matches(self, nodes):
         """Helper to iteratively yield the matches."""