Hi, this seems to indicate that there is an incompatibility in how numpy calls cython macros. On 8/22/19 12:38 AM, Ankur Sinha wrote: > error: macro "__Pyx_PyCode_New" requires 16 arguments, but only 15 given Actually, there already is a bug report on cython here: https://github.com/cython/cython/issues/2938 discussing this incompatibility. It means that the c code needs to be regenerated from the numpy pyx cython files before it will work, so you would need to use the latest numpy version from git. This is also mentioned in this numpy issue 3 days ago: https://github.com/numpy/numpy/issues/13927 Which states: "Closing, in summary for python3.8 you must build from a git checkout until we release official 3.8 wheels/tarballs." It won't work for pip builds yet. _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx