Python Programming Tutorial - 17 - Flexible Number of Arguments

[narayansinghbhadauriya]

Just so u know Bucky
Someone's always watching and learning from you even after 6 years....

[milindbest]

If anyone of you is wondering, *args works fine even when different types of arguments are passed within the same function call. For example

def numbers (*args):
for arg in args:
print(arg)

numbers(1, 2, 3) #case1
numbers("alpha", "beta", "gamma") #case2
numbers("one", 2, 3.0) #case3

The output in this case is
#case1
1
2
3
#case2
alpha
beta
gamma
#case3
one
2
3.0

[mohamedatef]

Who ever thought that this looks like passing by reference in C, You are an old school legend now !

[nilacof]

A function I created using these tutorials to subtract, only thing changed is you have to give a determined starting point for total instead of 0:


def subtract_numbers(first, *args):
total = first
for b in args:
total -= b
print(total)

subtract_numbers(4, 1, 2)


output in this case is 4 minus 1 minus 2 which is 1.

[criskity]

2:00 You have a giraffe in your house?

[dannymorckjensen]

Great videos and much appreciated. Humor and perfect lengths. My kind of style Thx :-)

[maliakbulut]

def add_numbers(*args):
total=0
for a in args:
total += a
return total



sum=add_numbers(3, 30)
print("result is", sum, )

[TheSamkhaled]

side note: if you choose to multiply rather than add, change the total = 0 to total = 1 (since anything multiplied by 0 is 0 but anything multiplied by 1 is the number itself) and change the += sign to *=

[satadhi]

watching this tutorial exactly at 3:40 AM !!!!:p

[flow]

celsius to fahrenheit converter by using args

def cel_fahr(*cel):
for x in cel:
fahr=x*9/5+32
print(fahr)

[faisal]

Hello sir, you are just awesome. You describe the toughest things in a way that anyone can understand. Thank you once again. Sir, is it possible for you demonstrate bully algorithmn in distributes system with python language?

[Bilalnwo]

first tutorial that i don't really get. can someone please explain line 2

[piattrocks]

total += a

How does a become the value of the argument, if its only defined in the

for a in args

line?

Like isn't that just like 0 1 2 3 4 5 for each time it's called?

[greatsea]

"...the ashcherishk sign."   Hahaha.  When pronouncing asterisk, think "master of risk".  Now remove the 'of'.  Master risk.  Now remove the 'M' and you got it.  Aster-risk.  Asterisk.

[dabooda]

omg an '*'! Can it be a pointer, please let it be so, I love pointers! Coming from c++ this language seems so odd to me atm, keep trying to put a damn semi-colon at the end of every line. I am seriously hoping for pointers though.

[ninipopo]

Mean calculator

def average(*args):
mean = 0
len1 = len(args)
for a in args:
mean += a/len1
print(mean)

[yogitamodi]

how to declare datatype or variable type in the program why are you not making user defined program

[srineeshsalur]

+thenewboston hey bucky if i type in this code i could add the numbers but the numbers keep pooping in each time i add an anothe number for example if i want to add add 3 and 5 it would show me the output as 3 and 8 pls help me in this regard
def explaining_arguments(*args):
car = 0
for e in args:
car +=e
print(car)
explaining_arguments(3, 5)

output:3
8

[supadupahilton]

Ok, so if you set 'for n in range' to 1001, with the 'magic number' value set to 256 (or less) the program works fine. As soon as you increase it to 257 (or more) it immediately fails.  Why??

[sansamman]

How would you make a list the argument for a function to be a list, x = [ 1, 2, 3, 4, 5, 6, ] and i want to add all six up?
Thanks a lot