Update aria/core/JobManager.py

aria/core/JobManager.py

@@ -277,7 +277,7 @@ class Job(Thread, AriaBaseClass):
         # Parse output to get jobid and launch another job which depend on it to
         # create checkpoint file
         jobid = self.get_jobid(out)
-        checkscript = '_%s' % jobid if jobid else ''
+        checkscript = '_%s' % str(jobid) if jobid else ''
 
         if jobid:
             # Create specific checkpoint file