#2565: compiling PETSc included in the ET fails if "python" executable is missing

Reporter: Roland Haas Status: new Milestone: Version: development version Type: bug Priority: major Component:

Comment (by Roland Haas):

Newer versions have the same assumption that a “python” executable exists. Neither one actually assumes it is “python2”, contrary to what I had said above.

So there is no direct need to update anything. Systems without “python” may be Ubuntu or Debian and Ubuntu systems without one of the “python-is-python[23]” packages installed. Debian explicitly and knowlingly violates Python’s installation guidelines to force its users to make an explicit choice about which Python to install. See [https://lists.debian.org/debian-python/2020/09/msg00030.html%5D(https://list...)

There is no obvious answer on how to patch since the tools that have “python” as their interpreteer in the #! line actually do seem to work with both python2 and python3 (and least on the Jenkins systems where I just tried this).

-- Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2565/compiling-petsc-in...