Updating Line Geometry Based on Matching IDs

Question

Hi There. I am trying to update a Feature Class records with Polyline geometry (currently NULL) with the Polyline geometry of a Feature Class based on Matching ID fields. I can run this code without error, but it is not updating the Geometry at all and I'm not sure why that is. Any help is much appreciated. import arcpy workspace = r'C: est.gdb' arcpy.env.workspace = workspace # Feature Class of Lines with Geometry FC_wGeom = r'C: est.gdb\Lines' wGeomFields = ['ObjectID', 'SHAPE@'] #Feature Class of Lines to inherit FC_wGeom's line shape FC_woGeom = r'C: est.gdb\LinesToBeUpdated' woGeomFields = ['UniqueID', 'SHAPE@'] #start an edit session edit = arcpy.da.Editor(workspace) # Edit session is started without an undo/redo stack for versioned data edit.startEditing(True, False) print("start an edit session") # Start an edit operation edit.startOperation() valueDict = {} # Build dictionary of ObjectID and Line Geometry for r in arcpy.da.SearchCursor(FC_wGeom, wGeomFields): if r[1] == None: pass else: valueDict[r[0]] = r[1:] print(valueDict) # Update FC_woGeom Feature Class with Geometry from FC_wGeom Feature Class IF OBJECTID and UniqueID match with arcpy.da.UpdateCursor(FC_woGeom, woGeomFields) as updateRows: for updateRow in updateRows: keyValue = updateRow[0] print(keyValue) if keyValue in valueDict: updateRow[1] = valueDict[keyValue][0] print(valueDict[keyValue][0]) updateRows.updateRow(updateRow) print("Updated {}".format(keyValue)) #Stop Editing edit.stopOperation() edit.stopEditing(True) print("stop an edit session")‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

RandyBurton · Accepted Answer

This thread is similar, but points instead of lines.  It may be helpful: Move point geometry to other location based on common ID.