On Jan 16, 6:55 pm, Steven D'Aprano <st...@remove-this-
cybersource.com.au> wrote:
> I have a series of subclasses that inherit methods from a base class, but
> I'd like them to have their own individual docstrings.
The following is not tested more than you see and will not work for
builtin methods, but it should work in the common cases:
from types import FunctionType, CodeType
def newfunc(func, docstring):
c = func.func_code
nc = CodeType(c.co_argcount, c.co_nlocals, c.co_stacksize,
c.co_flags, c.co_code, c.co_consts, c.co_names,
c.co_varnames, c.co_filename, func.__name__,
c.co_firstlineno, c.co_lnotab, c.co_freevars,
c.co_cellvars)
nf = FunctionType(nc, func.func_globals, func.__name__)
nf.__doc__ = docstring
return nf
def setdocstring(method, docstring):
cls = method.im_class
basefunc = getattr(super(cls, cls), method.__name__).im_func
setattr(cls, method.__name__, newfunc(basefunc, docstring))
# example of use
class B(object):
def m(self):
"base"
return 'ok'
class C(B):
pass
setdocstring(C.m, 'C.m docstring')
print B.m.__doc__ # the base docstring
print C.m.__doc__ # the new docstring
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