fix exception on accessing missing attribute on JobStatus

[pmrv]

When (accidentally) trying to access a job status check that is not actually defined, like job.status.queued instead of job.status.submitted you'd get a weird error message like this

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-50-ac32335f0f7e> in <module>
----> 1 jre.status.foo

~/software/pyiron/pyiron/base/job/jobstatus.py in __getattr__(self, name)
    243             return self._status_dict[name]
    244         else:
--> 245             super(JobStatus, self).__getattr__(name)
    246 
    247     def __setattr__(self, name, value):

AttributeError: 'super' object has no attribute '__getattr__'

which doesn't explain the actual issue (that you typed the wrong name).

The previous implementation of __getattr__ tried to escalate to
object.__getattr__ if the requested attribute name is not one of the
status names, probably to keep normal attribute lookup working. But
this is not needed because python first calls __getattribute__ to do the
normal lookup and only then calls __getattr__ if it is defined1 and
since object doesn't define __getattr__ this gave a weird exception when
you tried to access JobStatus.status_name and got the status name wrong.

This now raises the proper AttributeError, while keeping normal
attribute access intact.

Not a big problem, but I stumbled on this this morning, because I mixed up the status names.

[coveralls]

Pull Request Test Coverage Report for Build 4316

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 56.996%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyiron/base/job/jobstatus.py	0	1	0.0%

Totals
Change from base Build 4314:	0.0%
Covered Lines:	11777
Relevant Lines:	20663

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💛 - Coveralls

[jan-janssen]

Looks good to me, I guess the super part came from a time when job status was derived from string.