Python Programming Tutorial - 29 - Multiple Parameters Video Lecture - Computer Science Engineering (CSE)

some guys is bulky welcome to your 29th
Python tutorial in this tutorial I'm
going to show you guys how to put
multiple parameters in the function now
in the lessor I showed you guys how to
build functions with a set number of
parameters but there's gonna come times
like when you're building a shopping
cart or grocery list program that you
don't exactly know how many things the
user is gonna have so you need a way to
tell Python that I don't know exactly
how many things or elements are gonna
have but I need you to do a certain
thing to them so to do that let's go
ahead and make a function let's call it
lists for grocery list and inside before
I would show you just how to add a
single thing like that but if you want
to add of many things an unknown amount
of things what you need to do is put an
asterisk before it and what this does is
this extras owes its tell alright
whatever you put in for this element
instead of just treating as single
single thing treat it as a tuple so
let's go ahead and do something to this
list and what we want to do is just
print out food this is a really simple
function so now if we have list and we
add an element like apples and call it
as you can see it doesn't just print out
apples it prints out apples as an
element in the tupple so now using this
asterisks we can add many elements to
one parameter instead of just writing a
whole bunch of different parameters so
let's go ahead and put list and let's
add I like to do that to get everything
that way apples peaches and beef why not
hey where my thing go alright now once
you press ENTER as you can see we get a
couple of apples peaches and beef and
this is a way that you can put these
parameters into tuples and also it's
useful with regular parameters too so
not only can you make a function to
treat multiple parameters or an unknown
mount we can also combine this with
regular parameters
you say you wanted to make a profile for
someone that only has like one name or
something but you wanted to get like the
ages of all the girls they dated so
let's go ahead and define profile move
my cursor out of the way and we want one
regular parameter called name and again
this has no asterisks in front of it and
I shouldn't have put those so since that
has no asterisks in front of it we can
only add one element to that so after
that we want a variable element so let's
go ahead and put Astrix and put ages and
now this um profile function is gonna
allow us to enter as many parameters as
you want it's gonna treat the first one
is name and everyone after that it's
gonna treat as ages so let me go ahead
and print out let's go ahead and just
print name and then print ages after
that and now we got a profile function
name and is many parameters after that
so let's go ahead and call it profile
sure I spot it right our first parameter
let's go ahead and put Bucky and then
every parameter after that so this is
what we did our first parameter is the
name it's going to print the name every
parameter after this is going to be
treated as a tuple or multiple values so
let's go ahead and add some 4243 what
are these the girls I dated 76 I did it
a 98 year-old woman 4 and a 54 not
really but just for example and let's go
ahead and press ENTER and let me show
you guys with this what happens the
first thing it did is treated this as
name and this is because it could only
take one parameter so that's all it took
and next it's alright you have multiple
parameters right here so I'm gonna take
the rest of these things and treat it as
ages so I'm going to print this out is
ages so that's a way where you can get a
function in instead of just having a
known value or you
how much the users in enter if you don't
have something like this where you don't
know how many girls they dated all you
have to do is press star and it says
alright just treat the rest of them as a
tupple and then you can perform
functions on this and it's a lot easier
than trying to deal with the unknown
value so that my friends is your quick
tutorial on how to use many parameters
in your functions and how to convert
many of the values in your parameters in
with tupple so I hope you enjoyed I hope
you learned something we will be using
this later on so practice it get used to
it
again thank you for watching make sure
to subscribe to my channel and I'll see
you next time