ArcPro 3.3 custom python toolbox does not register refreshes after editing python source code

MBocek

Hello!

I am modifying a custom python toolbox in ArcGIS Pro 3.3, and I am running into issues getting the toolbox to recognize any changes. I make edits in VS Code, save the edits, right click on toolbox, and then click refresh. However, I do not see the changed reflected the next time I open the tool. 

This is an error I got about RemoveSpatialIndex:

But I had commented it out before saving and then refreshing:

I've also tried clearing the cache from Pro Options and that doesn't work. I can get the tool to register edits after I quit Pro and reopen it. Has anyone else ran into this? or is there a step I've missed in the workflow?

Thanks!

Bsmith_DPW

I have a similar setup (a main .pyt toolbox that loads individual tools from separate .py files) and encountered this issue years ago.  I don't remember exactly how I landed on it (probably from old threads) but this approach did fix the issue for me.

#import base modules and define path to individual tool scripts
import sys
import os
import arcpy
from importlib import reload

# Assuming you have a folder named toolboxscripts in the same directory as your .pyt file
sys.path.append(os.path.join(os.path.dirname(__file__), "toolboxscripts"))

#import the individual tool scripts, forcing a reload of any imported tools/modules
    #otherwise you would have to restart Arc each time you edited an individual tool script
    #this way you just have to right click -> Refresh the toolbox
    
import filename1
reload(filename1)
from filename1 import ToolName1

import filename2
reload(filename2)
from filename2import ToolName2

class Toolbox(object):
    def __init__(self):
        self.tools  =  [ToolName1,
                        ToolName2]