Bug#1000950: python3-mshr: error processing line 3 of /usr/lib/python3/dist-packages/mshr.pth

[Drew Parsons]

Source: mshr
Followup-For: Bug #1000950

It's probably happening because petsc is not configured yet. I guess
you're installing mshr and petsc in the same installation step?
(i.e. petsc will be pulled in automatically as a dependency).

/usr/lib/petsc is an alternatives symlink, so it won't be available
until libpetsc-real3.15-dev has been processed and configured.

Can you confirm you *don't* get the mshr.pth warning if
libpetsc-real3.15-dev has been installed prior to installing mshr?

Can probably fix it with Pre-Depends instead of Depends.

Drew