pover

Python OVERloading (pover) methods with type hints

It is equipped with fast overloading methods look up, minimal runtime footprint, overloading methods at class construction time.

Install

pip3 install pover

Example

All you need is pover.OverloadMeta. Simply declare your class with metaclass pover.OverloadMeta

#!/usr/bin/env python3
import unittest
import pover


class Foo(metaclass=pover.OverloadMeta):
    def add(self, a: int):
        return a + 1

    def add(self, a: list):
        return a + [1]

    def add(self, a: set):
        a.add(1)
        return a

    def minus(self, a: int):
        return a - 1

    def minus(self, a: str):
        return a[:-1]


class OverloadTest(unittest.TestCase):
    def test_overload(self):
        foo = Foo()
        self.assertEqual(foo.add(1), 2)
        self.assertEqual(foo.add([0]), [0, 1])
        self.assertEqual(foo.add({0}), {0, 1})
        self.assertEqual(foo.minus(1), 0)
        self.assertEqual(foo.minus("hello"), "hell")

Run tests:

python3 -m unittest pover.tests.tests

Supports

It requires python >=3.5.

It supports all native python types like int, set, list, dict etc. as well as your custom classes class MyClass.

It does not support typing module like typing.List, typing.Tuple, but you can use the native list, tuple instead.

Future

Support keyword arguments.