Jul 21, 2012 · Two issues. First, if you are having trouble identifying where the exception is happening in your try..except, that's a sign your try..except block is too big.

Mar 18, 2019 · try: assert False raise Exception('Python assertions are not working. This tool relies on Python assertions to do its job. Possible causes are running with the "-O" flag or running a precompiled (".pyo" or ".pyc") module.') except AssertionError: pass

Sep 28, 2010 · @philologon I just tried the solution (exact copy-paste of my answer) in both Python 2.7.10 and Python 3.5.1 and it works as expected. My answer has been downvoted, but I see no reason why. – Honza Javorek

Jan 23, 2018 · When you run your code by typing python myscript.py, you can instead type python -O myscript.py. (If you run code from an IDE instead of the command-line, your IDE probably has an option somewhere to achieve the same effect.) –

Feb 28, 2011 · Watch out for the parentheses. As has been pointed out in other answers, in Python 3, assert is still a statement, so by analogy with print(..), one may extrapolate the same to assert(..) or raise(..) but you shouldn't.

Mar 26, 2019 · Python 2.7. The unittest doc says: To make migrating existing test suites easier, unittest supports tests raising AssertionError to indicate test failure.

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Apr 28, 2017 · $ python -Oc "assert 1/0" $ python -c "assert 1/0" Traceback (most recent call last): File "<string>", line 1, in <module> ZeroDivisionError: integer division or modulo by zero For the environment You can use an environment variable to set this flag as well.

Feb 5, 2021 · The statement assert can be used for checking conditions at runtime, but is removed if optimizations are requested from Python. The extended form is: assert condition, message and is equivalent to: if __debug__: if not condition: raise AssertionError(message) where __debug__ is True if Python was not started with the option -O.

Oct 8, 2020 · I know, but acctually the question is not about the test itself, it is about the python behavior in that case, the output of the pipline says E False is False, while False == False is working, the tests I am running is not of that much importance in that case. Hwo it can be that one of them failes but the other one not –