Concatenate a print from a function with a seperate print statement

Question

Let's say I have the following function:

def string_function(word):
    print(word)

How do I make it so that if I call a separate print function, I can concatenate the string from that function to the new print?

E.g. the following will raise a TypeError, but it's what I'm trying to do. :

print("foo") + string_function("bar")

I know that I can just change the print into a return, but I'm asking if it's possible with a print.

it would be better if your function returns something instead of printing — buran, Jan 17 '21 at 13:20
Does this answer your question? [How to print without newline or space?](https://stackoverflow.com/questions/493386/how-to-print-without-newline-or-space) — Stefan Falk, Jan 17 '21 at 13:23

Marc Dillar · Answer 1 · 2021-01-17T13:28:22.593

0

You could use the end argument of the print function to display both messages on the same line:

print("foo", end="")
string_function("bar")

edited Jan 17 '21 at 13:28

answered Jan 17 '21 at 13:18

Marc Dillar

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2
9

Stefan Falk · Answer 2 · 2021-01-17T13:28:21.457

The TypeError is because neither print() nor string_function() return anything (except the default return value None).

What you are doing here is, essentially, adding None with a None:

None + None  # This is what causes your TypeError

What you probably want is using the end argument of print() and set it to an empty string:

print("foo", end="")
print("bar")

If you want to format or concatenate strings you have several options:

a = "foo"
b = "bar"

print(f"{a} {b}")        # Use format string
print(a + " " + b)       # Concatenation using +
print(" ".join((a, b)))  # Using str.join

Just to name the most common ones.

Concatenate a print from a function with a seperate print statement

2 Answers2