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Build # 1013

Build Type

push

travis-ci

Committed by pfalcon

Commit Message

RFC/WIP py/objtype: user classes: Allow to lookup __new__() method.

__new__() method is present by definition in each class, because each class
inherits from "object". But due to effects of multiple inheritance and
subclassing native types, looking it up is tricky: object.__new__ should
be the last choice, if a more specific version is found (in one of multiple
bases, or in native type), that should be used.

This patch implements this behavior by wrapping existing attribute lookup
function, and looking inside "object" only if the otiginal function doesn't
find anything. This relies on "object" not being present explicitly in the
base class chain (otherwise multiple inheritance case will be broken -
object.__new__ will be found while following the very first inheritance
branch, while other branches may have more specific __new__).

This also leads to additional stack usage on each lookup due to extra
function call.

Run Details

17419 of 17791 relevant lines covered (97.91%)

321131.1 hits per line