to my knowledge, if you input any text it will return true and if you input nothing it will return false. if it’s possible without if statements, how do i check if they inputted ‘True’ or 'False (/ ‘1’ or ‘0’) when im doing ‘bool(input("Input True or False ")’.

  • @[email protected]OP
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    210 months ago

    why is my input being seen as a string in the firsr place if i typecasted the variable as a boolean? how do i make the input itself a bool (rather than the variable?)

    • @[email protected]
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      10 months ago

      User inputs are strings, which can be anything. You are hoping they input True or false but what if they input tRUe or FALSE77 or Hunter4 or jgidqopqncb uriwnsvsveyqiaoNcbtjwnak? bool(“tRUe”) doesn’t evaluate to True or False in the way you think it does.

      If you want to convert user input to a bool use a lookup dict with some validation rules (like lower casing input text) to sanitize the input. I cannot emphasize this enough - never trust user input.

    • @[email protected]
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      10 months ago

      Worth remembering that python uses the concepts of truthy and falsey. Empty string (“”) is falsey. Any other string (“true”, “false”, “0”, etc.) Is truthy. All bool(str) does is evaluate whether str is truthy or falsey. It does not evaluate what str actually is.

      So bool(input("Input True or False ") will return False is the user input is empty and True otherwise.

    • @nieceandtows
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      -810 months ago

      You can use eval(input). It converts string to whatever the actual content is.

      • @[email protected]
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        210 months ago

        Be careful here though as it’ll run anything they type in

        There may be a way in via the parser/tokeniser which is less iffy?

        • @[email protected]
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          510 months ago

          Yeah, don’t do that. Users could accidentally or maliciously type something that would get executed as python code and break your program