Upgrade Cython to 0.29.21 #29861
Description
We upgrade Cython to 0.29.21
(https://github.com/cython/cython/blob/master/CHANGES.rst#02921-2020-07-09)
This is supposed to fix many bugs compared to our current 0.29.17, but a bug reported with the new version (https://groups.google.com/g/sage-devel/c/ij0ulNf7ZuI/m/qF0AlS9IBgAJ):
$sage -c 1+1
SageMath version 9.1, Release Date: 2020-05-20
Traceback (most recent call last):
File "/home/conda/feedstock_root/build_artifacts/sagelib_1592119926566/_test_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehol/bin/sage-eval", line 4, in <module>
from sage.all import *
File "/home/conda/feedstock_root/build_artifacts/sagelib_1592119926566/_test_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehol/lib/python3.6/site-packages/sage/all.py", line 117, in <module>
import sage.misc.lazy_import
File "sage/misc/lazy_import.pyx", line 1, in init sage.misc.lazy_import (build/cythonized/sage/misc/lazy_import.c:10174)
AttributeError: type object 'sage.misc.lazy_import.LazyImport' has no attribute '__div__'
Previous update:
- Upgrade Cython to 0.29.17 #29480 - Upgrade Cython to 0.29.17 (merged in 9.2.beta1)
Depends on #29867
CC: @isuruf @nbruin @kiwifb @dimpase @antonio-rojas @jhpalmieri
Component: packages: standard
Keywords: upgrade
Author: Matthias Koeppe
Branch/Commit: c24d109
Reviewer: Dima Pasechnik
Issue created by migration from https://trac.sagemath.org/ticket/29861