f66ab29cb5
Fix the root cause of makefile().writelines() data loss. https://github.com/eventlet/eventlet/issues/295 Also wsgi.log.write can break file-object API and not return number of bytes again. https://github.com/eventlet/eventlet/issues/296
56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
import sys
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from contextlib import contextmanager
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from eventlet.support import greenlets, six
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def get_errno(exc):
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""" Get the error code out of socket.error objects.
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socket.error in <2.5 does not have errno attribute
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socket.error in 3.x does not allow indexing access
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e.args[0] works for all.
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There are cases when args[0] is not errno.
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i.e. http://bugs.python.org/issue6471
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Maybe there are cases when errno is set, but it is not the first argument?
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"""
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try:
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if exc.errno is not None:
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return exc.errno
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except AttributeError:
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pass
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try:
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return exc.args[0]
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except IndexError:
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return None
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if sys.version_info[0] < 3 and not greenlets.preserves_excinfo:
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from sys import exc_clear as clear_sys_exc_info
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else:
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def clear_sys_exc_info():
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"""No-op In py3k.
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Exception information is not visible outside of except statements.
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sys.exc_clear became obsolete and removed."""
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pass
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if sys.version_info[0] < 3:
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def bytes_to_str(b, encoding='ascii'):
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return b
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else:
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def bytes_to_str(b, encoding='ascii'):
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return b.decode(encoding)
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PY33 = sys.version_info[:2] == (3, 3)
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@contextmanager
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def capture_stderr():
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stream = six.StringIO()
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original = sys.stderr
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try:
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sys.stderr = stream
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yield stream
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finally:
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sys.stderr = original
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stream.seek(0)
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