Python: "10" > "9" is FALSE?!PRO

Strings compare letter by letter, so "1" sorts before "9". Convert with int() first.

# "10" > "9" is False ?!
# Strings compare letter by letter, like a dictionary: "1" comes before "9".
print("10" > "9")             # False ?!
print(sorted(["10", "9", "2"]))   # ['10', '2', '9'] ?!

# Fix: turn them into numbers first
print(int("10") > int("9"))   # True ✓
print(sorted(["10", "9", "2"], key=int))   # ['2', '9', '10'] ✓

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