Assert two variables are almost equal in python

Question

Here are two variables: earnings_forecast, actual_earning (numerical variables)

I want to assert if both these variables are equal with a diffe

Answer 1

Simply define a new test:

def assertNearlyEqual(self,a,b,fraction=0.02,msg=None):
    if abs(a-b) > abs(fraction*a):
        if msg is None:
            self.fail("The given numbers %s and %s are not near each other."%(a,b))
        else:
            fail(msg)

and call it with your two variables:

self.assertNearlyEqual(earnings_forecast,actual_earning)