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Delayed/soft assertions for python

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Delayed aka. Soft asserts for python

Few features:

- No Dependenices on any other framework/library.
- Should work with any testing framework.
- Can be use as decorator or context manager.


Install via pip

    pip install delayed-assert

Install from master

    pip install git+


See for usage.

Using assertion library with lambda

Pass the assertion call as

    lambda: self.assertListEqual([4,5,6,2,5],[7,8])

While I've tested only with unittest asserttion,It should be able to use any assertion library.

Keep in mind that, Python does not support statement inside lambda, so

    lambda: assert 1 == 1

won't work as it is not a valid lambda expression in python


Credit :

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