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authorBenjamin Peterson <benjamin@python.org>2011-03-06 23:14:30 (GMT)
committerBenjamin Peterson <benjamin@python.org>2011-03-06 23:14:30 (GMT)
commitd86e4c86733736f938100bae85b6eb3fadf5f02c (patch)
tree73e5c0afa08e58c282e1b3003cc7e6a3d9259647 /Lib/lib2to3
parent81638f1351780eccb70bbc701ce366861a914d2e (diff)
downloadcpython-d86e4c86733736f938100bae85b6eb3fadf5f02c.zip
cpython-d86e4c86733736f938100bae85b6eb3fadf5f02c.tar.gz
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only do this sys.stderr replacing on CPython
Diffstat (limited to 'Lib/lib2to3')
-rw-r--r--Lib/lib2to3/pytree.py11
1 files changed, 7 insertions, 4 deletions
diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py
index e3ce249..100232b 100644
--- a/Lib/lib2to3/pytree.py
+++ b/Lib/lib2to3/pytree.py
@@ -743,9 +743,11 @@ class WildcardPattern(BasePattern):
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()
+ # ignored. We only have to do this on CPython, though, because other
+ # implementations don't have this nasty bug in the first place.
+ if hasattr(sys, "getrefcount"):
+ save_stderr = sys.stderr
+ sys.stderr = StringIO()
try:
for count, r in self._recursive_matches(nodes, 0):
if self.name:
@@ -759,7 +761,8 @@ class WildcardPattern(BasePattern):
r[self.name] = nodes[:count]
yield count, r
finally:
- sys.stderr = save_stderr
+ if hasattr(sys, "getrefcount"):
+ sys.stderr = save_stderr
def _iterative_matches(self, nodes):
"""Helper to iteratively yield the matches."""