id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc
590,dict.keys/values/items() return lists in -3 mode,scoder,scoder,"In Python 2, it is correct to replace calls to the dict methods {{{keys()}}}, {{{values()}}} and {{{items()}}} by their faster {{{PyDict_*()}}} C-API equivalents. For Cython language level 2, this is always the right thing to do.

In Python 3, however, the methods return dict views whereas the C-API functions continue to return lists, so when compiling in -3 mode, Cython should not optimise the method calls away to allow access to the dict views when running in Python 3 (even if they are not available in Python 2). There is currently no C-level way to access dict views, so the only way to instantiate them is through the dict methods.

The mapping is currently set up in Builtin.py.
",defect,closed,major,0.19,Python3 Semantics,fixed,,