Mmm... No it does not help. I see that python3.5.3 is used in my firedrake install since it is the default python3 version on my computer. 

Is python3.6 *really* mandatory?

Nicolas

Le mer. 14 oct. 2020 à 18:42, Lawrence Mitchell <wence@gmx.li> a écrit :

> On 14 Oct 2020, at 15:49, Karin&NiKo <niko.karin@gmail.com> wrote:
>
> Dear Firedrakers,
>
> I installed firedrake with the following options few months ago :
> python3 firedrake-install --disable-ssh --mpiexec mpirun.openmpi --mpicc mpicc.openmpi --mpicxx mpicxx.openmpi --mpif90 mpif90.openmpi
>
> I am now trying to update the code. So I am activating the virtualenv and I run : firedrake-update
> I then get the error :
> Running firedrake-update --verbose
> Traceback (most recent call last):
>   File "firedrake-update", line 1254, in <module>
>     mpiexec_loc = shutil.which(args.mpiexec)
> AttributeError: 'Namespace' object has no attribute 'mpiexec'

This error is that the "args" object has no "mpiexec" attribute. I'm not sure how that happens.

Does it help to try and recover from a broken update script following the advice here:

https://www.firedrakeproject.org/download.html#recovering-from-a-broken-installation-script

Lawrence