Pylint fix (#407)

* [ModelicaSystem] fix pylint message

OMPython/ModelicaSystem.py:1787:16: W0612: Unused variable 'key' (unused-variable)

=> replace items() by values()

* [OMCSession] fix pylint: W0706: The except handler raises immediately (try-except-raise)

---------

Co-authored-by: Adeel Asghar <adeel.asghar@liu.se>

Author: syntron

OMPython/ModelicaSystem.py

@@ -1800,7 +1800,7 @@ def linearize(
         )
 
         if self._inputs:
-            for key, data in self._inputs.items():
+            for data in self._inputs.values():
                 if data is not None:
                     for value in data:
                         if value[0] < float(self._simulate_options["startTime"]):

OMPython/OMCSession.py

@@ -171,8 +171,6 @@ def getClassComment(self, className):
             logger.warning("Method 'getClassComment(%s)' failed; OMTypedParser error: %s",
                            className, ex.msg)
             return 'No description available'
-        except OMCSessionException:
-            raise
 
     def getNthComponent(self, className, comp_id):
         """ returns with (type, name, description) """
@@ -201,8 +199,6 @@ def getParameterNames(self, className):
             logger.warning('OMPython error: %s', ex)
             # FIXME: OMC returns with a different structure for empty parameter set
             return []
-        except OMCSessionException:
-            raise
 
     def getParameterValue(self, className, parameterName):
         try:
@@ -211,8 +207,6 @@ def getParameterValue(self, className, parameterName):
             logger.warning("Method 'getParameterValue(%s, %s)' failed; OMTypedParser error: %s",
                            className, parameterName, ex.msg)
             return ""
-        except OMCSessionException:
-            raise
 
     def getComponentModifierNames(self, className, componentName):
         return self._ask(question='getComponentModifierNames', opt=[className, componentName])