Problem in _saferef.py

[pwrdby]

My code reported this error:
File "/home/lib/python3.4/site-packages/blinker/_saferef.py", line 197, in calculate_key
return (id(get_self(target)), id(get_func(target)))
AttributeError: 'function' object has no attribute 'self' .
When i print(dir(target)) i got this:
['annotations', 'call', 'class', 'closure', 'code', 'defaults', 'delattr', 'dict', 'dir', 'doc', 'eq', 'format', 'ge', 'get', 'getattribute', 'globals', 'gt', 'hash', 'init', 'kwdefaults', 'le', 'lt', 'module', 'name', 'ne', 'new', 'qualname', 'reduce', 'reduce_ex', 'repr', 'setattr', 'sizeof', 'str', 'subclasshook', 'accept', 'im_func', 'im_self', 'is_signal_handler']

There is no 'self', just 'im_self'. I tried to change the code on line 50 in file _saferef.py:
from if sys.version_info < (3,):
to if sys.version_info > (3,):

and my code works. Is it a mistake in my code or is it a bug ?
Thank you for your patience.

[jek]

Can you paste a test case that produces that traceback? All the tests pass on 3.4, so perhaps something is missing in the tests or in the (increasingly creaky) saferef implementation.

[pwrdby]

I ran more tests and I found out, that bug is in lib mongoengine, which assumed blinker version 0.9.
Sorry for misunderstanding.