Deprecation warnings (2.7 -> 3 )

[rusi]

In trying to get from 2.x to 3 Terry suggested I use 2.7 with
deprecation warnings


Heres the (first) set

DeprecationWarning: Overriding __eq__ blocks inheritance of __hash__
in 3.x
DeprecationWarning: callable() not supported in 3.x; use isinstance(x,
collections.Callable)

Is there one place/site I can go to for understanding all these and
trying to clear them?