Python 3: How do I .join() input() With A String?

Question

I want to join a users input to a string.

def Username():
    Name = ("Name:")
    Name.join(input("What's your Dicer's name?:n"))
    print(Name)
Username()

If I were to input the name 'Bradley' for input() here is the results:

What's your Dicer's name?:
 Bradley
Name:

It didn’t print what I wanted even though I joined the input with "Name:". Here is what I was expecting. Why is it not occurring?

What's your Dicer's name?:
 Bradley
Name: Bradley

Asked By: BradTheBrutalitist

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Source

Answer 1

The join method of string expects a list (iterable) to join using the string itself. For example:

>>> "-".join(["one", "two"])
'one-two'

joined the list ["one", "two"] with the "-" string.

I expect you want something like:

" ".join(["Name:", input("Enter name:")])

joining the string "Name:" with the value returned by input.

But that’s a bit hard to read. You might be better off with format:

name = input("Enter name: ")
print("Name: {}".format(name))

Answered By: Carl Groner

Answer 2

This isn’t how str.join() works. The method takes a list or sequence of strings, and joins them into one string, with the “parent” string demarcating the listed values. In your case you most likely want to call

print( " ".join([Name, input( "What's your Dicer's name?:n" ) ] ))

This will put a space between both strings in the list.

EDIT: As noted in comments above, this isn’t a mutating method, and instead returns an entirely new string, which you will have to keep under a new or existing variable.

Reference: http://www.tutorialspoint.com/python/string_join.htm

Answered By: Jeremy

Answer 3

.join is an overkill for this. You can simply concatenate the user input to Name using +:

def Username():
   Name = "Name: "
   Name += input("What's your Dicer's name?:n")
   print(Name)

Answered By: Moses Koledoye

Answer 4

Why don’t your something like.

ans = input("What's your Dicer's name?:n")
print("Name:"+ans)

It will give you what you want.
It is the best way to solve the problem what you want. Join is not appropriate in this situation.

Cheers,
John

Answered By: MooreJohn90

Python 3: How do I .join() input() With A String?

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