How to Make (Define) a Function in Python

This video shows the basics of making and calling functions in Python and supplying functions with default arguments. Code available in the pinned comment below!

[DataDaft]

# Define functions with def

def function_name(function_argument_1, function_argument_2):

# Function body
multiplied = function_argument_1 * function_argument_2

# Return value - What comes out of the function
return multiplied

# Call the function on some inputs after it has been defined:

function_name(5, 10)

# Set a default function argument value with =

def combine_strings(word1 = "Hello", word2 = "World", sep = " "):

return word1 + sep + word2



combine_strings()

combine_strings("Data", "Daft", sep = "")

# Use the output of one function call as input to another:

combine_strings(combine_strings("Data", "Daft", sep = ""), "Rules!")

[scottcuthbert]

That was extremely helpful, I'm currently studying IT and was stuck with this in the textbook, this makes more sense I'll subscribe to your channel as your explanation was well structured.

[ryanmanchikanti]

Please make a video on yield I don't understand how it works, would really appreciate it

[worriedaim]

Great explanation, made it much easier to understand!

[darth]

thanks. I didn't need a guy to read the pages for me tho. I was expecting you would show "how to make a function" instead of reading this document.

[nontheyet]

Thank you very much this video helped me. i'll come back to this comment when i get accepted into WTC

[sujith]

hi, im new to python, i want to calculate ittrative calculation, using def function..do u have any related video relateed to that

[Superstar-nltl]

for hello world isn't it easier to just use print ('Hello, World!') ? why use a function to do this?