0
value = None

print("Insert a value:")
value = input()

if value == None:
    print("Any value.!")
else:
    print("Your value is different to None: ", value)
James
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Eduardo Espinal
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  • Does this answer your question? [Python None comparison: should I use "is" or ==?](https://stackoverflow.com/questions/14247373/python-none-comparison-should-i-use-is-or) – Nick Jun 15 '22 at 07:36
  • `if value is None:` – Nick Jun 15 '22 at 07:36
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    It won't work anyways, since `input` can't return None. If you don't input anything it will return `''` – Adid Jun 15 '22 at 07:37
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    @Nick, the return of `input` is always a string. The if-statement will always be False because `value` will never be `None`. – James Jun 15 '22 at 07:39
  • @James yeah, vtc'd only after looking at the comparison test... – Nick Jun 15 '22 at 23:58

1 Answers1

4

When you assign value = input(), value will now be a string. Even if the user does not provide an input (just hits enter), the value will be an empty string ''. So comparing to None will always fail.

Instead, just check if the value is not empty using if value:

print("Insert a value:")
value = input()

if value:
    print("Any value.!")
else:
    print("Your value is different to None: ", value)
James
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