I don't understand.
We can take a function and attach it to an object, and then call it
as an instance method as long as it has at least one argument:
#############
class A:
pass
def foo(x):
print x
A.foo = foo
a=A()
a.foo()
#############
However this is not possible for another instance method:
############
class A:
pass
class B:
def foo(x,y)
print x,y
b=B()
A.foo = b.foo
a=A()
# error!!!
a.foo()
##############
Python complains that 'foo() takes exactly 2 arguments (1 given)'.
But by calling "b.foo(1)" we prove that it is indeed a function which takes
exactly one argument.
Isn't that inconsistent?
Thanks,
Gerald.
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