Operators

What this module covers

By the end of it

• Use all arithmetic operators, including floor division, modulo, and exponentiation
• Apply augmented assignment (+=, *=, …) and know when it mutates in place
• Compare values correctly, and exploit Python's chained comparisons (0 < x < 100)
• Combine conditions with and, or, not, and explain short-circuit evaluation
• Test membership with in / not in across strings, lists, dicts, and sets
• Distinguish identity (is) from equality (==) in operator contexts
• Use bitwise operators &, |, ~, ^ — and explain why pandas requires them
• Predict evaluation order from the precedence table, and know when to add parentheses anyway