Merge pull request galaxyproject#2466 from nsoranzo/release_16.04_fix…

…_for_2463

[16.04] Delay import of DrmaaSessionFactory after runner initialization

lib/galaxy/jobs/runners/drmaa.py

@@ -15,7 +15,6 @@
 from galaxy.jobs.handler import DEFAULT_JOB_PUT_FAILURE_MESSAGE
 from galaxy.jobs.runners import AsynchronousJobState, AsynchronousJobRunner
 from galaxy.util import asbool
-from pulsar.managers.util.drmaa import DrmaaSessionFactory
 
 drmaa = None
 
@@ -62,6 +61,7 @@ def __init__( self, app, nworkers, **kwargs ):
                                 'feature, please install it or correct the '
                                 'following error:\n%s: %s' %
                                 (exc.__class__.__name__, str(exc)))
+        from pulsar.managers.util.drmaa import DrmaaSessionFactory
 
         # Subclasses may need access to state constants
         self.drmaa_job_states = drmaa.JobState