Divide Python list into multiple lists based on element condition

Question

How can I take a python list and divide it into multiple lists based on element conditions?

myList = ['Georgia', 12344, 52353, 'Alabama', 352947, 394567, 123437, 'Florida', 992344, 788345]




for each in myList:
  do stuff

result:

list1 = ['Georgia', 12344, 52353,]
list2 = ['Alabama', 352947, 394567, 123437]
list3 = ['Florida', 992344, 788345]

`doStuff`... apparently you forgot to try that command yourself — roganjosh, Mar 30 '23 at 19:49
Looking at your previous question, it seems you're familiar with python. What, exactly, is the sticking point here? You ain't doing it with a list comprehension because you want 3 lists at the end of it — roganjosh, Mar 30 '23 at 19:50
@Barmar that's not a dupe. It's clear they want to split on string vs int — roganjosh, Mar 30 '23 at 19:52
Don't try to create dynamic variables. You should create a list of lists. You can probably do this with `itertools.groupby()` — Barmar, Mar 30 '23 at 19:53
This is not a duplicate of the linked question - the sublists are not of equal length. — Mous, Mar 30 '23 at 20:47

score 2 · Accepted Answer · answered Mar 30 '23 at 19:53

2

Use isinstance to check if it's a string or int. Start a new sublist or append to the sublist depending on condition.

newlists = []

for item in myList:
    if isinstance(item, str):
        new_sublist = [item]
        newlists.append(new_sublist)
    else:
        new_sublist.append(item)

answered Mar 30 '23 at 19:53

Michael Cao

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Thanks. I feel like this should have been more obvious to me. Maybe I've just been looking at code for too long. – PinAppleRedbull Mar 30 '23 at 20:02

Divide Python list into multiple lists based on element condition

1 Answers1