Trouble updating attribute table using arcpy.UpdateCursor

Question

I am trying to update a column with data from a different attribute table using arcpy.UpdateCursor()

When I run my script it does not return an error, but it does not save the updated value to the table either.

I have attached a screenshot of my code.

Any and all suggestions are greatly appreciated.

atom-parcel-script.py.zip

LanceCole_0-1637264620860.png

EarlMedina · Answer

Hi Hannah,

In your first function, you use an Update Cursor but aren't updating any values. A Search Cursor would be more appropriate. If I understand what you're trying to do correctly, I believe your question is touched upon in some older posts - you can check these two for guidance:

* update attribute table from another table based on a query 
* https://community.esri.com/thread/208862-using-search-cursor-dictionaryupdate-populate-many-fields-using-values-from-another-table

-Earl

JoshuaBixby · Answer

My first suggestion is don't use Cursor—Help | ArcGIS Desktop , use UpdateCursor—Help | ArcGIS Desktop.

Also, sharing with Python‌