Currently it states:
"""To solve these and similar dilemmas, the next section will propose
a metaclass for use with ABCs that will allow us to add an ABC as a
"virtual base class" (not the same concept as in C++) to any class,
including to another ABC. This allows the standard library to define
ABCs Sequence and MutableSequence and register these as virtual base
classes for built-in types like basestring, tuple and list, so that
for example the following conditions are all true:
<snip>
issubclass(bytes, MutableSequence)"""
Not true anymore! Someone should fix that to say Sequence instead.
Thanks,
Carl Johnson
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