fix and update readme

README.md

 # processing_semspec_init
 
-Runs `call de.derivo.semspect.server.reload`
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+
+Maintainer: Tim
+
+Status: Stable, maintained
+
+This is a part of the DZDConnect Graph Dataloading pipeline but can also ran standalone. Find more informations at [DZDConnect Graph Pipeline](https://git.connect.dzd-ev.de/dzdconnectpipeline/pipeline)
+
+This pipelinemember just calls the neo4j procedure `de.derivo.semspect.server.reload` if existent to initialize the cache for the neo4j [SemSpect](https://www.semspect.de/)-Plugin. This enables faster loading of the plugin afterwards.
+
+You can also just run the SemSpect initialization manually with
+
+`call de.derivo.semspect.server.reload`
+
+in the neo4j Browser.
+
+If SemSpect is not installed in the Neo4j Database, this pipeline member will do nothing.
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log.txt

+RUN call de.derivo.semspect.server.reload
+RUN call de.derivo.semspect.server.reload
+[Procedure.ProcedureNotFound] There is no procedure with the name `de.derivo.semspect.server.reload` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.
+Traceback (most recent call last):
+  File "/home/tim/Repos/git.connect.dzd-ev.de/DZDConnectPipeline/processing_semspec_init/src/main.py", line 21, in <module>
+    res = g.run("call de.derivo.semspect.server.reload")
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/database.py", line 405, in run
+    return self.auto().run(cypher, parameters, **kwparameters)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/database.py", line 992, in run
+    self._connector.pull(result, -1)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/__init__.py", line 1434, in pull
+    cx.pull(result, n=n)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1001, in pull
+    self._audit(self._transaction)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 810, in _audit
+    task.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1140, in audit
+    item.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1140, in audit
+    item.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1303, in audit
+    raise self._failure
+py2neo.errors.ClientError: [Procedure.ProcedureNotFound] There is no procedure with the name `de.derivo.semspect.server.reload` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.
+RUN call de.derivo.semspect.server.reload
+[Procedure.ProcedureNotFound] There is no procedure with the name `de.derivo.semspect.server.reload` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.
+Traceback (most recent call last):
+  File "/home/tim/Repos/git.connect.dzd-ev.de/DZDConnectPipeline/processing_semspec_init/src/main.py", line 21, in <module>
+    res = g.run("call de.derivo.semspect.server.reload")
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/database.py", line 405, in run
+    return self.auto().run(cypher, parameters, **kwparameters)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/database.py", line 992, in run
+    self._connector.pull(result, -1)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/__init__.py", line 1434, in pull
+    cx.pull(result, n=n)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1001, in pull
+    self._audit(self._transaction)
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 810, in _audit
+    task.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1140, in audit
+    item.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1140, in audit
+    item.audit()
+  File "/home/tim/.local/lib/python3.9/site-packages/py2neo/client/bolt.py", line 1303, in audit
+    raise self._failure
+py2neo.errors.ClientError: [Procedure.ProcedureNotFound] There is no procedure with the name `de.derivo.semspect.server.reload` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.
+RUN call de.derivo.semspect.server.reload
+Procedure
+RUN call de.derivo.semspect.server.reload
+Neo.ClientError.Procedure.ProcedureNotFound
+RUN call de.derivo.semspect.server.reload
+True
+RUN call de.derivo.semspect.server.reload
+Semspect is not installed. No init neccessary.
+Try to run call de.derivo.semspect.server.reload
+Semspect is not installed. No init neccessary.

src/main.py

 import os
 import logging
 from py2neo import Graph
+from py2neo.errors import ClientError
 import json
-from py2neo.database.work import ClientError
+
 
 log = logging.getLogger(__name__)
 log.addHandler(logging.StreamHandler())
@@ -15,6 +16,12 @@ NEO4J_CONFIG_DICT = json.loads(NEO4J_CONFIG_STRING)
 log.debug("NEO4J conf: \n{}".format(json.dumps(NEO4J_CONFIG_DICT)))
 g = Graph(**NEO4J_CONFIG_DICT)
 
-log.info("RUN call de.derivo.semspect.server.reload")
-res = g.run("call de.derivo.semspect.server.reload")
-log.info(res)
+log.info("Try to run call de.derivo.semspect.server.reload")
+try:
+    res = g.run("call de.derivo.semspect.server.reload")
+except ClientError as e:
+    if e.code == "Neo.ClientError.Procedure.ProcedureNotFound":
+        log.info("Semspect is not installed. No init neccessary.")
+    else:
+        raise e
+