i want to show docstring of my function, but if i use like this
@cost_time
def func():
"define ...."
blabla
print func.__doc__
it will not show the docstring,just because i use some meta programming tricky, how can fix this?
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2 Answers
Your wrapped function returned from the cost_time decorator must have the docstring instead of func. Therefore, use functools.wraps which correctly sets __name__ and __doc__:
from functools import wraps
def cost_time(fn):
@wraps(fn)
def wrapper():
return fn()
return wrapper
Comments
Use functools.wraps().
answered Oct 5, 2010 at 15:39
Ignacio Vazquez-Abrams
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