I made a tool in ArcGIS Python Add-Ins for my colleagues and right now wrote an update in main script. It would be easy to tell everyone to delete old add-in and install new one, but recently found the path to the initial script of a tool which is C:\Users\%username%\AppData\Local\ESRI\Desktop10.2\AssemblyCache\folder with a long name\file.py. I tried to make a script that could make a backup of file.py to file_backup.py, take a new file and paste it in found folder. Script works well, the new file with new updates is there, but when I launch ArcMap there are no any changes. I can see that the file is the same that I used before.

Is it technically possible to perform this operation using the change of files?

The script is:

import os
import shutil
loc = os.environ.get('LOCALAPPDATA')
filename = 'Pointer_addin.py'

for x in os.walk(loc): 
    if filename in str(x) :
        print os.path.join(x[0],filename) 
        path = x[0]
        filepath = os.path.join(x[0],filename) 

os.rename(filepath,filepath.rstrip('.py') + '_backup.py')

1 Answer 1


You have not used os.walk properly. It hasnt correctly identified the old file. Try the below. This should identify the filename in the location, create a new file name, rename the original file, and copy the new addin to the location.

import os
import shutil
loc = os.environ.get('LOCALAPPDATA')

for root, dirs, files in os.walk(loc): 
    for file in files:    
        if file.endswith('Pointer_addin.py') :
            filepath = os.path.join(root, file) 
            print filepath

newfilename = filepath.replace(".py", "_backup.py")
os.rename(filepath, newfilename)
newp = r'D:\Pointer\Install\Pointer_addin.py'
shutil.copy(newp, filepath)
  • well I actually found that my script works and file goes to the right directory. The problem is based on arcmap's resources - an updated was again returned to it's past condition. I tried to change permission to 'Read only' and it worked!! But ONLY in ArcGIS 10.2. I wanted to did the same in 10.5 and in this case it didn't worked... Commented Sep 27, 2017 at 11:06

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