Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Revision c572dc3752871a48127db1fb3c8bc20889d2be34 authored by Amaury Forgeot d'Arc on 13 November 2007, 22:43:05 UTC, committed by Amaury Forgeot d'Arc on 13 November 2007, 22:43:05 UTC
When an unfinished generator-iterator is garbage collected, PyEval_EvalFrameEx
is called with a GeneratorExit exception set. This leads to funny results
if the sys.settrace function itself makes use of generators.
A visible effect is that the settrace function is reset to None.
Another is that the eventual "finally" block of the generator is not called.
It is necessary to save/restore the exception around the call to the trace
function.
This happens a lot with py3k: isinstance() of an ABCMeta instance runs
def __instancecheck__(cls, instance):
"""Override for isinstance(instance, cls)."""
return any(cls.__subclasscheck__(c)
for c in {instance.__class__, type(instance)})
which lets an opened generator expression each time it returns True.
And the problem can be reproduced in 2.5 with pure python code.
1 parent f5ccd45
Tip revision: c572dc3752871a48127db1fb3c8bc20889d2be34 authored by Amaury Forgeot d'Arc on 13 November 2007, 22:43:05 UTC
Backport for issue1265 (pdb bug with "with" statement).
Backport for issue1265 (pdb bug with "with" statement).
Tip revision: c572dc3
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| .hgtags | -rw-r--r-- | 3.4 KB |
| LICENSE | -rw-r--r-- | 13.4 KB |
| Makefile.pre.in | -rw-r--r-- | 34.5 KB |
| README | -rw-r--r-- | 54.4 KB |
| configure | -rwxr-xr-x | 610.5 KB |
| configure.in | -rw-r--r-- | 95.3 KB |
| install-sh | -rwxr-xr-x | 7.0 KB |
| pyconfig.h.in | -rw-r--r-- | 26.5 KB |
| setup.py | -rw-r--r-- | 67.2 KB |
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