Latest Contributions by forestknutsen1

You could use a search cursor to read in the ids and then an update cursor the write the count out the feature class. import arcpy fc_path = r'C:\my_temp\junk3\geo\fgdb.gdb\wells' ids = [] with arcpy.da.SearchCursor(fc_path, 'ID') as cursor: for row in cursor: ids.append(row[0]) # make empty dict ids_dict = {} # get a list of unique ids, e.g. remove duplicates, set does this # then just convert it back to a list uids = list(set(ids)) # for each uid make a dict item with the key the uid and an empty list as the value for uid in uids: ids_dict[uid] = [] # this is what sets you up for counting. it finds the matching well id keys # and adds the key to the list value so you get in the dict {'w1': [w1, w1, w1]} # then all you need to do count the length of the value list. for id in ids: ids_dict[id] = ids_dict[id] + [id] with arcpy.da.UpdateCursor(fc_path, ['ID', 'DUP']) as cursor: for row in cursor: for k, v in ids_dict.items(): if row[0] == k and v is not None: row[1] = len(v) ids_dict[k] = None cursor.updateRow(row) ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more