Submitting jobs with the "cluster" option fails due to job_id parsing

[patbohn]

Dear Slurmpy devs,

thank you so much for the neat package, it has greatly reduced the complexity of establishing my workflows. However, I noticed a small limitation with it, in that when one supplies the optional "--cluster" parameter to slurm, the resulting job_id will contain this name, and thus the conversion of the job_id to int fails here:

slurmpy/slurmpy/slurmpy.py

Line 202 in 71592e3

j_id = int(res.split()[-1])

Not sure if it actually is required to have this job_id returned as int, could a string also work?

Best wishes,
Patrick