field calculator question

TavisThomson

when inputting this python script into field calculator Arcmap freezes and crashes:

code block

def my_func(my_field)

    if my_field is None:

         return " "

    while my_field is not None:

          pass

field

My_func(!" "!)

If there is a large amount of dat in this field is there another way to sort more efficiently?

DanPatterson_Retired

unfortunately not, a space isn't the same as null.   Also see the help file on using code blocks  ArcGIS Help (10.2, 10.2.1, and 10.2.2)‌