[Python-Dev] deprecating string module?
Martin v. Loewis
martin@v.loewis.de
31 May 2002 00:49:30 +0200
Guido van Rossum <guido@python.org> writes:
> Is this still relevant to Python? Why are C++ member functions
> difficult to generic programs? Does the same apply to Python methods?
In a generic algorithm foo, you can write
def foo1(x):
bar(x)
if you have global functions. With methods, you need to write
def foo1(x):
x.bar()
which means that bar must be a method of x. This might be difficult to
achieve if x is of a class that you cannot control. In C++, it is then
still possible to define a function
def bar(x of-type-X):
pass
which, by means of overload resolution, will be found from foo1
automatically.
In Python, this is not so easy since you don't have overloading.
Regards,
Martin