Make NullPen inherit from AbstractPen

This commit is contained in:
Nikolaus Waxweiler 2021-02-21 10:20:48 +00:00
parent ab1883da1d
commit 8a55182f37

View File

@ -148,7 +148,7 @@ class AbstractPen(abc.ABC):
raise NotImplementedError
class NullPen(object):
class NullPen(AbstractPen):
"""A pen that does nothing.
"""