filter_example.py

# Filter Function
# filter(fun, iterables)
# returns true of it matches the filter

# Sub range
import random

v = []
for x in range(10):
    v.append(random.randrange(100))
print(v)


def lower(value):
    if value < 50:
        return True
    else:
        return False


f = filter(lower, v)

print(f'Less Than 50: {list(f)}')


class Animal:
    name = ''

    def __init__(self, name):
        self.name = name


class Cat(Animal):
    def __init__(self, name):
        super().__init__(name)


class Dog(Animal):
    def __init__(self, name):
        super().__init__(name)


animals = []
for x in range(10):
    name = 'Animal' + str(x)
    if (x % 2) == 0:
        animals.append(Cat(name))
    else:
        animals.append(Dog(name))
    print(animals)

for a in animals:
    print(f'Animal:{a.name}')


def cats(value):
    return isinstance(value, Cat)


def dogs(value):
    return isinstance(value, Dog)


for c in list(filter(cats, animals)):
    print(f'Cat:{c.name}')

for d in list(filter(dogs, animals)):
    print(f'Dog:{d.name}')