如何从我制作的存储在主程序中的全局变量中的函数中获取字符串？

Question

I am trying to store the data of a variable of a function in a variable in my main program. The goal of this program is to ask for an input(Authors name) and add spaces if the length of the value satisfies the condition of it being less than a value, in this case whatever is stored in numb(16).

My function code is this:

def AddSpaces(auth,numb):
    print("Runs")
    while len(auth) < numb:
        auth = auth + " "
    print(auth)

I'm using it for this:

Author = str(input("Author: "))
AddSpaces(Author,16)
print(Author)

The output of the function would be "Author.........." but for the program It's "Author". How can I get auth to be stored in Author? Thank you.

Answer 1

You should return the value from the function instead of printing it. Also, your function is implemented very inefficiently. Use format strings instead of the loop:

def add_spaces(auth, numb):
    return f"{auth:{numb}s}"

Do not call str() , input already returns a string. And do not capitalize variable names, this is against Python style guide:

author = input("Author: ")
author_with_spaces = add_spaces(author, 16)
print(author_with_spaces)