Created attachment 300595 [details] the build log testing package against pypy 1.7 fails with the source of failure in zmq/utils/allocate.h zmq/core/context.c The build virtually doesn't even get started. It hits these I think first up and then the errors and warnings stream out. In short, a shamozzle. You will I suspect typically pin this and sort it in a flash.
C source files have been generated by Cython, which currently does not support PyPy. PyPy ABIs restricted in r1703.