New submission from Szieberth Ádám:
I faced this particular issue by writing decorators for asyncio coroutines.
I even posted a question to SO:
http://stackoverflow.com/questions/23015626/how-to-decorate-an-asyncio-coroutine-to-retain-its-name
However, since that I realized the problem is more general. I believe that a
generator object should inherit its function's __name__ attribute instead of
ignoring it. Example:
import functools
def decorated(genfunc):
@functools.wraps(genfunc)
def wrapper(*args, **kargs):
print('inside wrapper')
for x in genfunc(*args, **kargs):
yield 'decorated: {!r}'.format(x)
print('outside wrapper')
print('wrapper.__name__: {!r}'.format(wrapper.__name__))
return wrapper
@decorated
def simple_genfunc():
Testdoc.
yield from range(10)
if __name__ == '__main__':
print('simple_genfunc.__name__: {!r}'.format(
simple_genfunc.__name__))
print('simple_genfunc().__name__: {!r}'.format(
simple_genfunc().__name__))
And its result:
Z:\python -i genfuncdec.py
outside wrapper
wrapper.__name__: 'simple_genfunc'
simple_genfunc.__name__: 'simple_genfunc'
simple_genfunc().__name__: 'wrapper'
simple_genfunc
function simple_genfunc at 0x00C30420
simple_genfunc.__wrapped__
function simple_genfunc at 0x00C304B0
simple_genfunc()
generator object wrapper at 0x00C0EE18
simple_genfunc.__wrapped__()
generator object simple_genfunc at 0x00C0ED28
As you can see the generator object's __name__ remained the hardcoded one.
--
messages: 215968
nosy: SzieberthAdam
priority: normal
severity: normal
status: open
title: Unable to make decorated generator object to inherit generator
function's __name__
type: enhancement
versions: Python 3.4
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http://bugs.python.org/issue21205
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