I just installed sagemath on a new desktop running fedora 32 and I'm now trying to install python_igraph.
Command 'sage -I python_igraph' failed because it is unable to download dependency texttable-1.6.3.tar.gz (log file attached)
It tries to download it from mirrors (where it is not present) and not from the upstream url that is indicated in build/pkgs/texttable/checksums.ini
===
tarball=texttable-VERSION.tar.gz
sha1=0b345a86669730f204804916e439820d06321223
md5=68e6b31d36f5c20221da7d5db3eca772
===
I can download it manually from upstream url. I don't know how to fix that.