#!/usr/bin/env python3

def abc(*args, **kwargs):
    print(args)
    print(kwargs)

def with_positional(a, b, c, *args, **kwargs):
    print(a, b, c)
    print(args)
    print(kwargs)

# Wrong: cannot define keyword arguments before positional
#def with_keyword(a=None, b=None, c=None, *args, **kwargs):
#    pass

def with_keyword(*args, a=None, b=None, c=None, **kwargs):
    print(a, b, c)
    print(args)
    print(kwargs)

# This is also possible
def with_keyword2(*args, a, b, c, **kwargs):
    pass
    print(a, b, c)
    print(args)
    print(kwargs)

# (1, 'abc')
# {'foo': 2, 'bar': 3}
abc(1, 'abc', foo=2, bar=3)
# Wrong: cannot pass positional arguments after keyword arguments
#abc(1, 'abc', foo=2, bar=3, 4, 5)
print('---')

# 1 2 3
# (4, 5)
# {'foo': 10, 'bar': 11}
with_positional(1, 2, 3, 4, 5, foo=10, bar=11)
# Wrong: a,b,c are alrady bound to 4,5,6
#with_positional(4, 5, 6, foo=10, bar=11, a=1, b=2, c=3)

# This works as one would expect
with_positional(a=1, b=2, c=3, foo=10, bar=11)
# These two are wrong
#with_positional(4, a=1, b=2, c=3, foo=10, bar=11)
#with_positional(a=1, b=2, c=3, 4, foo=10, bar=11)

print('---')
with_keyword(4, 5, foo=10, bar=11)
with_keyword(4, 5, foo=10, bar=11, a=1, b=2, c=3)

# These two are equivalent
with_keyword2(foo=10, bar=11, a=1, b=2, c=3)
with_keyword2(a=1, b=2, c=3, foo=10, bar=11)