jmquintana79
9/24/2017 - 1:26 PM

dynamic arguments

Dynamic arguments for functions using *args and **kwargs

## *args   ########################################################
def test_var_args(farg, *args):
    print("formal arg:", farg)
    for arg in args:
        print("another arg:", arg)

test_var_args(1, "two", 3)
# output:
#formal arg: 1
#another arg: two
#another arg: 3

def test_var_args_call(arg1, arg2, arg3):
    print "arg1:", arg1
    print "arg2:", arg2
    print "arg3:", arg3

args = ("two", 3)
test_var_args_call(1, *args)
# output:
#arg1: 1
#arg2: two
#arg3: 3


## **kargs ########################################################
def test_var_kwargs(farg, **kwargs):
    print("formal arg:", farg)
    for key in kwargs:
        print("another keyword arg: %s: %s" % (key, kwargs[key]))

test_var_kwargs(farg=1, myarg2="two", myarg3=3)
# output:
#formal arg: 1
#another keyword arg: myarg2: two
#another keyword arg: myarg3: 3

def test_var_args_call(arg1, arg2, arg3):
    print "arg1:", arg1
    print "arg2:", arg2
    print "arg3:", arg3

kwargs = {"arg3": 3, "arg2": "two"}
test_var_args_call(1, **kwargs)
# output:
#arg1: 1
#arg2: two
#arg3: 3