topic TypeError: can only concatenate str (not "NoneType") to str in Geoprocessing Questions

TypeError: can only concatenate str (not "NoneType") to str

ABishop — Mon, 15 Aug 2022 15:02:19 GMT

Hello,

I hope this is posted in the right place. I am troubleshooting a script that I have been running for almost a year now which updates a hosted feature service in ArcGIS Online. We recently upgraded our ArcMap and Server to 10.8.2 and ArcGIS Pro 3.0.1. I am wondering if this update has something to do with it? Anyhow, I have posted the python code below and attached a pic of the TypeError I receive when I try to run the script from Python 3 IDLE. Please help.

import arcpy import os, sys from arcgis.gis import GIS ### Start setting variables # Set the path to the project prjPath = "I:\\users\\abishop\\PY\\FeatureServiceUpdates\\AgUseParcels\\AgUseParcels.aprx" # Feature service/SD name in arcgis.com, user/password of the owner account sd_fs_name = "Agricultural_Use_Parcels" portal = "https://mcpafl.maps.arcgis.com/" # Can also reference a local portal user = "***************" password = "*************" # Set sharing options shrOrg = True shrEveryone = False shrGroups = "" ### End setting variables # Local paths to create temporary content relPath = sys.path[0] sddraft = os.path.join(relPath, "AgUseParcels.sddraft") sd = os.path.join(relPath, "AgUseParcels.sd") # Create a new SDDraft and stage to SD print("Creating SD file") arcpy.env.overwriteOutput = True prj = arcpy.mp.ArcGISProject(prjPath) mp = prj.listMaps()[0] arcpy.mp.CreateWebLayerSDDraft(mp, sddraft, sd_fs_name, 'MY_HOSTED_SERVICES', 'FEATURE_ACCESS','', True, True) arcpy.StageService_server(sddraft, sd) print("Connecting to {}".format(portal)) gis = GIS(portal, user, password) # Find the SD, update it, publish /w overwrite and set sharing and metadata print("Search for original SD on portal…") sdItem = gis.content.search("{} AND owner:{}".format(sd_fs_name, user), item_type="Service Definition")[0] print("Found SD: {}, ID: {} n Uploading and overwriting…".format(sdItem.title, sdItem.id)) sdItem.update(data=sd) print("Overwriting existing feature service…") fs = sdItem.publish(overwrite=True) if shrOrg or shrEveryone or shrGroups: print("Setting sharing options…") fs.share(org=shrOrg, everyone=shrEveryone, groups=shrGroups) print("Finished updating: {} – ID: {}".format(fs.title, fs.id)) #provide input to stop script - uncomment input below if you need to see the script final output in the command window input('Press ENTER to exit')

Re: TypeError: can only concatenate str (not "NoneType") to str

DanPatterson — Mon, 15 Aug 2022 16:07:44 GMT

It mean that either the path or the folder id is returning None.

Where this occurs depends on whether any of your print statements are even reached.

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Mon, 15 Aug 2022 16:55:03 GMT

Hello Dan,

Thank you for replying. Yes, it says line 49 in the actual script which is calling out the sdItem.update(data=sd) module. Any chance this changed with our upgrade?

Re: TypeError: can only concatenate str (not "NoneType") to str

DanPatterson — Mon, 15 Aug 2022 20:43:47 GMT

That gets a bit difficult since you are using the arcgis module which is now at 2.0.1 and you would have to examine their help topics

API Reference for the ArcGIS API for Python | ArcGIS API for Python

maybe

arcgis.gis module | ArcGIS API for Python with a lot of scrolling under "item", but I don't do portal stuff, so I can't help more.

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Tue, 16 Aug 2022 20:27:31 GMT

I'm still trying to determine why the code works for one feature service but not another?

Re: TypeError: can only concatenate str (not "NoneType") to str

DanPatterson — Tue, 16 Aug 2022 21:40:48 GMT

That is beyond my domain... things get "cloudy" for me when you talk feature service 😉 Tech Support perhaps.

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Wed, 17 Aug 2022 16:49:56 GMT

Ok thank you

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Thu, 18 Aug 2022 16:46:27 GMT

Dan and other's who may see this thread. A good old fashion truncate table and append worked!

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Thu, 13 Oct 2022 17:29:10 GMT

Did you truncate/append the source data you were trying to push to AGO? Meaning there was something wrong with the source data...

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Thu, 13 Oct 2022 17:33:51 GMT

Hello Brian,

I don't understand your question. I truncated and appended the data in AGO with the source data from my PC.

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Thu, 13 Oct 2022 17:48:51 GMT

I've never used Truncate/Append on AGO...only on source data: PC and/or database.

Usually right-click on layer in ArcGIS Pro: Sharing>Overwrite map layer to update AGO.

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Thu, 13 Oct 2022 17:58:37 GMT

Yes, I have also always used the same method you describe above, to overwrite a map service manually. But with AGO, if you want to automate the process of overwriting the hosted feature layer using a python script, you can use the "truncate" and "append" tools on the hosted feature layers in your AGO content, then copy the python code to use in your script for automation. Make sense? Before, I used this method, I was using a script that had to log into AGO as the user, download the service definition file, etc.

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Thu, 13 Oct 2022 18:06:15 GMT

Can you share that part of the script so I can compare it to your original script above?

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Thu, 13 Oct 2022 18:31:00 GMT

Sure no problem!

print("Starting script... importing arcpy modules, starting timer, and setting local variables...") # Process: import arcpy modules import arcpy, os, sys from arcpy import env from datetime import datetime import ctypes ctypes.windll.kernel32.SetConsoleTitleW('AgUseParcelsFSUpdate') # Process: start timer startTime = time.perf_counter() # Process: set local variables AgUseParcelsFS = "https://services5.arcgis.com/zh4IrtLvSvA0sfub/arcgis/rest/services/AgUseParcels/FeatureServer/0" AgUseParcelsFC = r"K:\GIS_TOOLS\DB\arcgis2.sde\mcpagis.DBO.AgUseParcels" print("All set... starting truncate and append to update AgUseParcels hosted feature layer...") # Process: truncate hosted feature layer arcpy.management.TruncateTable(AgUseParcelsFS) print("AgUseParcels hosted feature layer truncated") # Process: append hosted feautre layer with local data arcpy.management.Append(AgUseParcelsFC, AgUseParcelsFS, "TEST", None, '', '') print("AgUseParcels hosted feature layer appended with AgUseParcels feature class in arcgis2.sde") print("AgUseParcelsFSUpdate script completed successfully") # Process: end timer endTime = time.perf_counter() print("Timer stopped") elapsedTime = round((endTime - startTime) / 60, 2) print("Script finished in {0} minutes".format(elapsedTime)) # Process: date and time stamp date = datetime.now().strftime("%Y_%m_%d-%I:%M:%S_%p") print("Date and time stamp: "+f"{date}") # Process: provide input to stop script - uncomment input below if you need to see the script final output in the command window input('Press ENTER to exit')

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Thu, 13 Oct 2022 18:35:19 GMT

That was so much simpler than the original script.

Thanks!

Re: TypeError: can only concatenate str (not "NoneType") to str

ABishop — Thu, 13 Oct 2022 18:36:59 GMT

Yes, exactly!

Re: TypeError: can only concatenate str (not "NoneType") to str

Ramon_de_Leon — Wed, 23 Nov 2022 15:34:27 GMT

I've been experiencing this same issue, after upgrading to ArcGIS Pro 3, and just like in Amanda's case I was using the workflow outlined at https://support.esri.com/en/technical-article/000023164 to overwrite and update my services in AGOL.

Now it fails on one of my APRX and works for others, am hoping to avoid doing the truncate/append route as the APRX it is failing for me has a lot of layers and definition queries.

Still working with Esri tech support in solving the issue.

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Wed, 23 Nov 2022 15:50:46 GMT

There is a bug in the ArcGIS API library that comes with ArcGIS Pro 3.x. I had the Service Definition located in a folder other than the root.:

Bug No: BUG-000152141
Synopsis: In ArcGIS API for Python 2.0.1, the update() method fails to update a service definition if the service definition is located in a folder other than the root folder in ArcGIS Online.
Status: In Review

Re: TypeError: can only concatenate str (not "NoneType") to str

Ramon_de_Leon — Wed, 23 Nov 2022 16:12:29 GMT

Thanks for the reply Brian, hope they get a fix sooner than later.

I guess, I'll stick to manually overwriting for the time being.

Re: TypeError: can only concatenate str (not "NoneType") to str

BrianPangtay — Wed, 23 Nov 2022 16:26:53 GMT

If you have this problem , you can just move your Service Definition in AGO to the root folder. That simple fix will solve this error.