Simplify slice handling in Pythran (GH-2989)
Simplify slice handling in Pythran (GH-2989)

And make it more flexible in terms of API change.
da-woods/cython,cython/cython,scoder/cython,da-woods/cython,scoder/cython,scoder/cython,cython/cython,scoder/cython,da-woods/cython,da-woods/cython,cython/cython,cython/cython