Preparing for no files key when magnetizing

[BackSlasher]

Motivation for changes:

• I had torrent adding exceptions when waiting on magnetization. Torrent was actually added, so it's not showstopping, but feature is still defective.

Detailed changes:

• Will supply default value of [] when trying to access status['files'], which might not exist.
• Also made line a bit more Pythonic

Addressed issues:

This is the error I had.

2017-03-24 10:23 INFO     deluge        download_tv     REDACTED was not added to deluge! [Failure instance: Traceback: <type 'exceptions.KeyError'>: u'files'\n/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:393:callback\n/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:501:_startRunCallbacks\n/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:588:_runCallbacks\n/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:1184:gotResult\n--- <exception caught here> ---\n/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:1128:_inlineCallbacks\n/srv/seedbox/flexget-venv/local/lib/python2.7/site-packages/flexget/plugins/clients/deluge.py:744:_wait_for_metadata\n]

TODO

Line can also be:

if ('files' in status) and len(status['files']):

I have no strong opinion in either way.

[liiight]

Looks like you could just do

If status.get('files'):

[BackSlasher]

Sure why not