What are some efficient ways to randomly shuffle these items inside each respective lists?
I could think of iterating through them, creating each respective lists but this seems repetitive...
Sure. random.shuffle works in-place so looping through list elements and applying it on them does the first job.
For the "flattening" I use a favorite trick of mine: applying sum on sublists with start element as empty list.
import random,itertoolschunks = [["Post: 6", "Post: 5"], ["Post: 4", "Post: 3"], ["Post: 2", "Post: 1"]]# shufflefor c in chunks: random.shuffle(c)# there you already have your list of lists with shuffled sub-lists
# now the flatteningprint(sum(chunks,[])) # or (more complex but faster below)
print(list(itertools.chain(*chunks))) # faster than sum on big lists
(you said you wanted something like [[<Post: 5>, <Post: 6>, <Post: 4>, <Post: 3>, <Post: 1>, <Post: 2>]] (list in a list) but I suppose that's a typo: I provide a simple, flattened list.
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