On Fri, 19 Jan 2024, Satish Balay via petsc-dev wrote: > > > > Unable to download package ZLIB from: > > http://ftp.mcs.anl.gov/pub/petsc/externalpackages/zlib-1.2.11.tar.gz > > > > Hm - this works directly - but not from python? I'll have to check with our admins. This now works for me. Can you recheck? Satish