I have the following list created from a sorted csv
list1 = sorted(csv1, key=operator.itemgetter(1))
I would actually like to sort the list by two criteria: first by the value in field 1 and then by the value in field 2. How do I do this?
No need to import anything when using lambda functions.
The following sorts
list by the first element, then by the second element. You can also sort by one field ascending and another descending for example:
sorted_list = sorted(list, key=lambda x: (x, -x))
import operator list1 = sorted(csv1, key=operator.itemgetter(1, 2))