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import sys
def get_errno(exc):
""" Get the error code out of socket.error objects.
socket.error in <2.5 does not have errno attribute
socket.error in 3.x does not allow indexing access
e.args[0] works for all.
There are cases when args[0] is not errno.
i.e. http://bugs.python.org/issue6471
Maybe there are cases when errno is set, but it is not the first argument?
"""
try:
if exc.errno is not None: return exc.errno
except AttributeError:
pass
try:
return exc.args[0]
except IndexError:
return None
if sys.version_info[0]<3:
from sys import exc_clear as clear_sys_exc_info
else:
def clear_sys_exc_info():
"""No-op In py3k.
Exception information is not visible outside of except statements.
sys.exc_clear became obsolete and removed."""
pass
if sys.version_info[0]==2 and sys.version_info[1]<5:
class BaseException: # pylint: disable-msg=W0622
# not subclassing from object() intentionally, because in
# that case "raise Timeout" fails with TypeError.
pass
else:
from __builtin__ import BaseException
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