Most Python devs write 10 lines where 1 would do. Here are 5 that'll make you rethink everything:

1. Flatten a nested list

flat = [x for sub in nested for x in sub]

2. Swap two variables

a, b = b, a

3. Count word frequency in a sentence

from collections import Counter
freq = Counter(sentence.split())

4. Read an entire file into a string

content = open("file.txt").read()

5. Filter a list by condition

evens = [x for x in nums if x % 2 == 0]

Python's power is in its simplicity. Most people overcomplicate it.

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