How can I flatten nested collections in Python?

How can I flatten nested collections in Python?

You can use list comprehensions or the itertools.chain method to flatten nested lists. Would you like an example?

Yes, please provide an example using list comprehensions.

Sure! If you have a nested list like nested_list = [[1, 2], [3, 4], [5]], you can flatten it using:

flattened = [item for sublist in nested_list for item in sublist]

This will give you [1, 2, 3, 4, 5].

What if I have a more complex structure, like a list of dictionaries?

For a list of dictionaries, you can use a similar approach. For example, if you have data = [{'a': 1}, {'b': 2}, {'c': 3}], you can flatten it by extracting the values:

flattened = [value for d in data for value in d.values()]

This will give you [1, 2, 3].