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pythonpython-2.7loadassertassertions

find string in loaded text

i have this problem;

i load in the IDLE a .txt with a bunch of different words, so in my code i want to assert that certain string included in the function i am defining is in this .txt file, but i keep getting AssertionError

for example, in my shell, for test if a word i know is in the file i put

--> 'AA' in WORDLIST

False

when the result i'm looking for it's 'True', because in the .txt i know there is an AA word writte it there thanks for help

Solution

  • I think I know what is causing your problem: a mistaken use of assert.

    Do not use assert for comparisons. I'm guessing you're doing something like this:

    assert 'word' in text_opened_file

    The result of this is None because assert raises an exception if the condition is False, but does not return True if the condition is True. Use if and == to return True or False from your comparisons.

    Here you can find a debate about effective use of assert.