###
23.2.6.6 OutputChecker objects

class `OutputChecker`( | )

  A class used to check the whether the actual output from a doctest example matches the expected output. `OutputChecker` defines two methods: `check_output`, which compares a given pair of outputs, and returns true if they match; and `output_difference`, which returns a string describing the differences between two outputs. New in version 2.4.

`OutputChecker` defines the following methods:

`check_output`( | want, got, optionflags)

  Return `True` iff the actual output from an example (got) matches the expected output (want). These strings are always considered to match if they are identical; but depending on what option flags the test runner is using, several non-exact match types are also possible. See section 23.2.3 for more information about option flags.

`output_difference`( | example, got, optionflags)

  Return a string describing the differences between the expected output for a given example (example) and the actual output (got). optionflags is the set of option flags used to compare want and got.