Use generator comprehension, and fix formatting.

python/services/partitionerservice/dmod/partitionerservice/service.py

@@ -486,7 +486,8 @@ async def manage_job_partitioning(self):
             while not self._job_util.lock_active_jobs(lock_id):
                 await asyncio.sleep(2)
 
-            for job in [j for j in self._job_util.get_all_active_jobs() if j.status_step == JobExecStep.AWAITING_PARTITIONING]:
+            for job in (j for j in self._job_util.get_all_active_jobs() if
+                        j.status_step == JobExecStep.AWAITING_PARTITIONING):
                 partition_requirements = [r for r in job.data_requirements if
                                           r.domain.data_format == DataFormat.NGEN_PARTITION_CONFIG]
                 assert len(partition_requirements) <= 1