"""
This is a demonstration of a bug that occurs when using
_functools.partial output as a method
"""

from functools import partial as cpartial

def pypartial(func, *args, **keywords):
    """
    This implementation is copied from http://www.python.org/doc/2.5.2/lib/module-functools.html
    """
    def newfunc(*fargs, **fkeywords):
        newkeywords = keywords.copy()
        newkeywords.update(fkeywords)
        return func(*(args + fargs), **newkeywords)
    newfunc.func = func
    newfunc.args = args
    newfunc.keywords = keywords
    return newfunc

def method_new(self, creator):
    print "method created by %s called with instance of %s as self" % (creator, self.__class__.__name__)
    print


class Thingy():
    partial_py = pypartial(method_new, creator='pypartial')
    partial_c = cpartial(method_new, creator='cpartial')


cpartial(method_new, self="a string", creator='cpartial')()
Thingy().partial_py()
Thingy().partial_c() # fails