[Sqlalchemy-tickets] Issue #3012: can't overrride __and__(), __or__() (and __invert__()?) (zzzeek/sqlalchemy)

[Mike B. <iss...@bi...>]

New issue 3012: can't overrride __and__(), __or__() (and __invert__()?)
https://bitbucket.org/zzzeek/sqlalchemy/issue/3012/cant-overrride-__and__-__or__-and

Mike Bayer:


```
#!python

from sqlalchemy import Integer, TypeDecorator, Column, type_coerce

class Foo(TypeDecorator):
    impl = Integer

    class comparator_factory(TypeDecorator.Comparator):
        def __eq__(self, other):
            print "EQ!"
            return type_coerce(self.expr, Integer) == other

        def __and__(self, other):
            print "AND!"
            return type_coerce(self.expr, Integer) & other


c = Column('x', Foo())

print c == 5
print c & 2
```