update-isogram: updates tests to v1.5.0 (#1494)
update-isogram: updates tests to v1.5.0 (#1494)

* update-isogram: updates tests to v1.5.0

* anagram: flake8

behrtam/xpython,behrtam/xpython,exercism/xpython,exercism/python,exercism/python,N-Parsons/exercism-python,exercism/xpython,N-Parsons/exercism-python,smalley/python,jmluy/xpython,smalley/python,jmluy/xpython