Peng Yu wrote:
> Hi, See the following example, I am not able to get the source code of
> the actual function that does the calculation of partial_ratio. Does
> anybody know what is the correct way of getting the source?
>
> /tmp$ ./main.py
> @functools.wraps(func)
> def decorator(*args, **kwargs):
> if args[0] is None or args[1] is None:
> return 0
> return func(*args, **kwargs)
>
> /tmp$ cat ./main.py
> #!/usr/bin/env python
> # vim: set noexpandtab tabstop=2 shiftwidth=2 softtabstop=-1
> # fileencoding=utf-8:
>
> import fuzzywuzzy.fuzz
> import inspect
> print inspect.getsource(fuzzywuzzy.fuzz.partial_ratio)
In Python 3 functools.wraps() records the wrapped function as __wrapped__:
$ cat tmp.py
import functools
def spam(func):
@functools.wraps(func)
def decorator(*args, **kwargs):
return func(*args, **kwargs)
return decorator
@spam
def ham(foo, bar):
return 42
$ python3
...
>>> import inspect
>>> import tmp
>>> print(inspect.getsource(tmp.ham))
@functools.wraps(func)
def decorator(*args, **kwargs):
return func(*args, **kwargs)
>>> print(inspect.getsource(tmp.ham.__wrapped__))
@spam
def ham(foo, bar):
return 42
In Python 2 when you look into the attributes of tmp.ham() using dir()
you'll eventually find
>>> print inspect.getsource(tmp.ham.__closure__[0].cell_contents)
@spam
def ham(foo, bar):
return 42
but I'm not sure this is general enough to spare you the look into the
source code.
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