[pypy-issue] Issue #1935: logilab.common 0.63.1 triggers a fatal RPython error of KeyError (pypy/pypy)

[Brett Cannon]

New issue 1935: logilab.common 0.63.1 triggers a fatal RPython error of KeyError
https://bitbucket.org/pypy/pypy/issue/1935/logilabcommon-0631-triggers-a-fatal

Brett Cannon:

When trying to byte-compile logilab.common 0.63.1, I keep triggering a fatal RPython error of KeyError: https://travis-ci.org/brettcannon/caniusepython3/jobs/42421116 . Under CPython 3.2 this error doesn't occur.