A keyword for confirming the truthiness of a given statement that is often used to facilitate development, document code, and debug.
assert some_condition, assert_message
assert keyword is followed by
some_condition to be tested, such as validating a data type or membership within a given container. An optional
assert_message can be added that will be printed when the assertion error is raised.
assert keyword can be used to validate a value (or evaluate some other condition):
fav_color = 'blue'assert fav_color == 'red'# Output: AssertionError
The following example uses
assert to evaluate if ‘mud’ is within the following list