print("hello", print("world"))
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3Why, did you print in print ? – Herlock Oct 11 '22 at 19:04
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3Because you are printing the return value of `print()`. – takendarkk Oct 11 '22 at 19:05
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1Does this answer your question? [Why is "None" printed after my function's output?](https://stackoverflow.com/questions/7053652/why-is-none-printed-after-my-functions-output) – buran Oct 11 '22 at 19:07
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Are you not also curious why `world` is output before `hello`? – buran Oct 11 '22 at 19:08
2 Answers
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It looks like you are trying to do
print("hello", "world")
Expressions (like print(something)) are evaluated from the inside-out. That lets you do stuff like
print(1 + 2)
# prints 3
The return value of print is None. So when you run print("hello", print("world")), first "world" is printed, and then you essentially have print("hello", None).
Axel Jacobsen
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Because print itself does not return anything, i.e. it returns None.
Your nested print statements are evaluated from the inside out, that is why world prints first and then hello + the return value of print = None
bimtauer
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