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import inspect
import functools
import sys
import warnings
from eventlet.support import greenlets
_MISSING = object()
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:
def bytes_to_str(b, encoding='ascii'):
return b
else:
def bytes_to_str(b, encoding='ascii'):
return b.decode(encoding)
PY33 = sys.version_info[:2] == (3, 3)
def wrap_deprecated(old, new):
def _resolve(s):
return 'eventlet.'+s if '.' not in s else s
msg = '''\
{old} is deprecated and will be removed in next version. Use {new} instead.
Autoupgrade: fgrep -rl '{old}' . |xargs -t sed --in-place='' -e 's/{old}/{new}/'
'''.format(old=_resolve(old), new=_resolve(new))
def wrapper(base):
klass = None
if inspect.isclass(base):
class klass(base):
pass
klass.__name__ = base.__name__
klass.__module__ = base.__module__
@functools.wraps(base)
def wrapped(*a, **kw):
warnings.warn(msg, DeprecationWarning, stacklevel=5)
return base(*a, **kw)
if klass is not None:
klass.__init__ = wrapped
return klass
return wrapped
return wrapper