[petsc-dev] [Mike McQuaid] Re: [Homebrew/homebrew-core] PETSc: import from homebrew-science (#23598)

[Jed Brown]

Satish Balay <balay at mcs.anl.gov> writes:

> On Sun, 25 Feb 2018, Jed Brown wrote:
>
>> I now also see that it writes an uninstall script that would delete
>> /usr/bin if the user installed with --prefix=/usr.
>
> I didn't realize this.. There should never be a 'rmtree' in the
> uninstall script - as prefix is usually a location shared by multiple
> packages.
>
> For now I'll revert https://bitbucket.org/petsc/petsc/commits/e22ab8e6ea0

The try part of that commit (around os.remove) is necessary.  Also,
"rmdir -p" provides a useful semantic in this context, but needs to be
implemented manually in Python (or I don't know where that functionality
is available in the standard library).