Fixed issue of handling missing comma

If you edit the CSV file in e.g. Excel and there was no Comment, then
the comma at the end of the line will be removed. It’s better to handle
that in the code when importing data from the CSV file

Author: adamenagy

ParameterIO.bundle.zip

@@ -4,9 +4,9 @@
 	"id":	"96adeab4-7e93-41f4-a4cc-90aba9a8be25",
 	"author":	"Wayne Brill, Autodesk",
 	"description":	{
-		"":	"Allows you to select a CSV (comma seperated values) file and then edits existing Attributes. Also allows you to write parameters to a file"
+		"":	"Enables users to update parameters from or save them to a CSV (Comma Separated Values) file"
 	},
-	"version":	"1.0",
+	"version":	"1.0.0",
 	"runOnStartup":	true,
 	"supportedOS":	"windows|mac"
 }

ParameterIO_Python.manifest

@@ -230,7 +230,7 @@ def writeTheParameters(theFileName):
 def readTheParameters(theFileName):
     app = adsk.core.Application.get()
     design = app.activeProduct
-    
+    ui  = app.userInterface
     try:
         paramsList = []
         for oParam in design.allParameters:
@@ -244,21 +244,24 @@ def readTheParameters(theFileName):
             nameOfParam = valsInTheLine[0]
             unitOfParam = valsInTheLine[1]
             expressionOfParam = valsInTheLine[2]
-            comentOfParamFromFile = valsInTheLine[3]
-            #need to remove the return character from the comment
-            commentOfParamList = comentOfParamFromFile.split("\n")
-            commentOfParam = commentOfParamList[0]
+            commentOfParam = ''
+            # comment might be missing
+            if len(valsInTheLine) > 3:
+                comentOfParamFromFile = valsInTheLine[3]
+                #need to remove the return character from the comment
+                commentOfParamList = comentOfParamFromFile.split("\n")
+                commentOfParam = commentOfParamList[0]
+                
             # if the name of the paremeter is not an existing parameter add it
             if nameOfParam not in paramsList:
                 valInput_Param = adsk.core.ValueInput.createByString(expressionOfParam) 
                 design.userParameters.add(nameOfParam, valInput_Param, unitOfParam, commentOfParam)
             #update the values of existing parameters            
             else:
-                paramInModel = design.userParameters.itemByName(nameOfParam)
+                paramInModel = design.allParameters.itemByName(nameOfParam)
                 paramInModel.unit = unitOfParam
                 paramInModel.expression = expressionOfParam
                 paramInModel.comment = commentOfParam
-        ui  = app.userInterface
         ui.messageBox('Finished reading and updating parameters')
     except:
         if ui: