reuse address to fix [Errno 98]

jobmanager/jobmanager.py

@@ -1522,6 +1522,7 @@ class JobManager_Server(object):
     def _check_bind(host, port):
         try:
             s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
             s.bind((host, port))
         except:
             log.critical("test bind to %s:%s failed", host, port)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "jobmanager"
-version = "0.3.0"
+version = "0.3.1"
 description = "Python job manager for parallel computing."
 authors = ["Richard Hartmann <richard.hartmann@tu-dresden.de>", "Paul Müller"]
 license = "BSD (3 clause)"