set compatibility how to get swap memory for get_memory_maps() in OS X

[chenull]

Hi, in my laptop (OS X) i got error:

2015-04-10 03:11:05,240 DEBG 'mrq-worker0' stderr output:

  File "/Users/ayik/Repositories/python/mrq/mrq/worker.py", line 351, in work
    return self.work_stop()
  File "/Users/ayik/Repositories/python/mrq/mrq/worker.py", line 456, in work_stop
    self.report_worker(w=1)
  File "/Users/ayik/Repositories/python/mrq/mrq/worker.py", line 295, in report_worker
    report = self.get_worker_report()
  File "/Users/ayik/Repositories/python/mrq/mrq/worker.py", line 248, in get_worker_report
    mem = self.get_memory()
  File "/Users/ayik/Repositories/python/mrq/mrq/worker.py", line 195, in get_memory
    "swap": sum([x.swap for x in mmaps])
AttributeError: 'mmap' object has no attribute 'swap'

In OS X, swap memory is using attribute "swapped" instead of "swap". So, I think it could be simply resolved using this pull request. It's just one line change, and should pass tests, hopefully :D sorry, i didn't test it since it needed to setup docker, which i don't have right now

[sylvinus]

Didn't know that, thanks! Too bad psutil doesn't abstract that away :/