Migration of code from 2.x to 3.x

Brian_McLeer — Fri, 19 Mar 2021 18:42:36 GMT

In trying to migrate from 2.x to 3.x, I am trying to update a segment of code and my troubleshoot has ran its limits with Google. I am trying to remove domains from fields in various feature classes below. My error, in particular, comes from the image below where the error I get is the 'NoneType' object is not callable.

Full Code:

# Comments arcpy.AddMessage("Removing All Domains..." +'\n') txtFile.write("Removing All Domains..." +'\n') #Set workspace environment to geodatabase arcpy.env.workspace = "D:\\WorkSpace\\WebReporter\\Workspace.gdb" myGDB = "D:\\WorkSpace\\WebReporter\\Workspace.gdb" #Get list of feature classes in geodatabase FCs = arcpy.ListFeatureClasses() #Loop through feature classes in list for FC in FCs: #List fields in feature class fields = arcpy.ListFields(FC) #Loop through fields for field in fields: #Check if field has domain if (field.domain != "" and field.domain != 'EnabledDomain' and field.domain != 'AnnotationStatus'): #Print feature class, field, domain name print (FC, field.name, field.domain) arcpy.RemoveDomainFromField_management(FC, field.name) # Get domains that are assigned to a field domains_used = [] for dirpath, dirnames, filenames in arcpy.da.Walk(myGDB, datatype=["FeatureClass", "Table"]): for filename in filenames: print ("Checking {}".format(os.path.join(dirpath, filename))) ## Check for normal field domains for field in arcpy.ListFields(os.path.join(dirpath, filename)): if field.domain: domains_used.append(field.domain) ## Check for domains used in a subtype field # Comments arcpy.AddMessage("I got to here..." +'\n') txtFile.write("I got to here..." +'\n') subtypes = arcpy.da.ListSubtypes(os.path.join(dirpath, filename)) for stcode, stdict in subtypes.items(): if stdict.get('keys')()()("SubtypeField") != u'': for field, fieldvals in stdict.get('keys')("FieldValues").items(): if not fieldvals[1] is None: domains_used.append(fieldvals[1].name) # Get domains that exist in the geodatabase domains_existing = [dom.name for dom in arcpy.da.ListDomains(myGDB)] # Find existing domains that are not assigned to a field domains_unused = set(domains_existing) ^ set(domains_used) print ("{} unused domains in {}".format(len(domains_unused), myGDB)) for domain in domains_unused: arcpy.DeleteDomain_management(myGDB, domain) print ("{} deleted".format(domain) ) # Comments arcpy.AddMessage("Removing All Domains Complete..." +'\n') txtFile.write("Removing All Domains Complete..." +'\n')

Re: Migration of code from 2.x to 3.x

Anonymous User — Fri, 19 Mar 2021 18:59:29 GMT

If you set a breakpoint on the line above (or a few lines above and step over to check your values) and debug, what values get assigned to the variables field and fieldvals? That should tell you if fieldvals[1] is null or not and possibly give you a clue where something may be broken.

topic Migration of code from 2.x to 3.x in Python Questions

Migration of code from 2.x to 3.x

Re: Migration of code from 2.x to 3.x