-logging of unsuccessful attempts of calling COM functions in WITecCOM (based on Josefs idea)

ramancom/WITecCOM.py

@@ -60,27 +60,35 @@ class WITecCOM(RamanBase):
     
         """
         def wrapper(*args, **kwargs):
-            def tryFunctionThreeTimes():
+            def tryFunctionThreeTimes(c):
                 success = False
                 for _ in range(3):
                     result = None
+                    c += 1
                     try:
                         result = comCallFunction(*args, **kwargs)
                         success = True
                         break
                     except pythoncom.com_error:
+                        comObj.logger.warning(
+                            f'Unsuccessful {c}. attempt for COM call of function {comCallFunction.__name__}\n{pythoncom.com_error}'
+                        )
                         sleep(1.)
-                return success, result
+                return success, result, c
+
+            c = 0
             comObj = args[0]   #self is always passed as first argument
-            functionSucceeded, result = tryFunctionThreeTimes()                
+            functionSucceeded, result, c = tryFunctionThreeTimes(c)
             if not functionSucceeded:
+                comObj.logger.warning(f'Reconnecting for function {comCallFunction.__name__}')
                 comObj.disconnect()
                 sleep(1.)
                 comObj.connect()
                 
-                functionSucceeded, result = tryFunctionThreeTimes()
+                functionSucceeded, result, c = tryFunctionThreeTimes(c)
                 if not functionSucceeded:
-                    showErrorMessageAsWidget(f'Com error on function {comCallFunction.__name__}')
+                    comObj.logger.warning(f'COM error: function {comCallFunction.__name__} could not be executed')
+                    showErrorMessageAsWidget(f'COM error on function {comCallFunction.__name__}')
                     raise pythoncom.com_error
             return result
         return wrapper