Database API error when parsing GPU from tres

[emi80]

Hi all,
first of all thanks for this really nice package. We are using it in our HPC cluster and has been very good so far.

I just found that the pyslurm.db.tres.GPU.from_tres method raise an exception if the GPU tres type has more than one :. This is not very common but it should just be ignored and actually the fix is just one change to the tres.name.split line.

The snipped below reproduces the issue:

from pyslurm import db

if __name__ == "__main__":
    jobs = db.Jobs().load()

And this is the error:

Traceback (most recent call last):
  File "test.py", line 4, in <module>
    jobs = db.Jobs().load()
  File "pyslurm/db/job.pyx", line 271, in pyslurm.db.job.Jobs.load
  File "pyslurm/db/tres.pyx", line 325, in pyslurm.db.tres.TrackableResources.load
  File "pyslurm/db/tres.pyx", line 282, in pyslurm.db.tres.TrackableResources._handle_tres_type
  File "pyslurm/db/tres.pyx", line 394, in pyslurm.db.tres.GPU.from_tres
ValueError: too many values to unpack (expected 2)

Of course, I'll be happy to create a PR with the fix.

Thanks!

[giovtorres]

Closed by #422