Chris Colbert wrote:
> Ok, it turns out this is possible using numpy.add_docstring()
>
> the caveat is that there must be no previous docstring in the object.
Could it be that add_docstring simply creates a wrapper object? I.e. if
you don't worry about performance you could easily make this how you want
it (including append/merge docstrings) if you do
class Wrapper:
def __init__(self, func, doc):
self.__doc__ = doc
self.func = func
def __call__(self, *args, **kw):
return self.func(*args, **kw)
Dag Sverre
>
> Remember: this is only for adding docstrings to compiled extension
> module objects at runtime.
>
> Here is a small contrived example (untested):
>
> #---------------------
> # decorator.py
> #---------------------
> import numpy as np
>
> class DocDeco(object):
> def __init__(self, doc):
> self.doc = str(doc)
>
> def __call__(self, func):
> np.add_docstring(func, self.doc)
> return func
>
> docdeco = DocDeco
>
>
> #----------------------
> # foo.py
> #----------------------
> from decorator import docdeco
>
> @docdeco('''docstring goes here''')
> def bar():
> pass
>
>
>
>
> On Thu, Oct 29, 2009 at 1:32 PM, Chris Colbert <[email protected]>
> wrote:
>> Hi,
>>
>> I didn't get a response on Cython-users, so i thought I might try here.
>>
>> I tried modifying the docstrings of cythonized "def" functions via a
>> function decorator.
>>
>> While it passes cython compilation, I get a run-time error that says
>> the docstring cannot be modified in place.
>>
>> Is there a special cython decorator that will allow me to do this, or
>> a compile time option that will run my decorator, and generate the new
>> docstring before compiling?
>>
>> Cheers!
>>
>> Chris
>>
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