python assert with and without parenthesis

Question

Here are four simple invocations of assert:

>>> assert 1==2
Traceback (most recent call last):
  File \"\", line 1, in ?
AssertionError

&g         


        

Answer 1

You can break assert statement without \ like this:

foo = 7
assert foo == 8, (
    'derp should be 8, it is ' + str(foo))

Or if you have even longer message:

foo = 7
assert foo == 8, (
    'Lorem Ipsum is simply dummy text of the printing and typesetting '
    'industry. Lorem Ipsum has been the industry\'s standard dummy text '
    'ever since the 1500s'
)