6.7.1 Mapping Operators to Functions

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This table shows how abstract operations correspond to operator symbols in the Python syntax and the functions in the operator module.

Operation	Syntax	Function
Addition	`a + b`	`add(a, b)`
Concatenation	`seq1 + seq2`	`concat(seq1, seq2)`
Containment Test	`o in seq`	`contains(seq, o)`
Division	`a / b`	`div(a, b) #` without `__future__.division`
Division	`a / b`	`truediv(a, b) #` with `__future__.division`
Division	`a // b`	`floordiv(a, b)`
Bitwise And	`a & b`	`and_(a, b)`
Bitwise Exclusive Or	`a ^ b`	`xor(a, b)`
Bitwise Inversion	`~ a`	`invert(a)`
Bitwise Or	`a \| b`	`or_(a, b)`
Exponentiation	`a ** b`	`pow(a, b)`
Identity	`a is b`	`is_(a, b)`
Identity	`a is not b`	`is_not(a, b)`
Indexed Assignment	`o[k] = v`	`setitem(o, k, v)`
Indexed Deletion	`del o[k]`	`delitem(o, k)`
Indexing	`o[k]`	`getitem(o, k)`
Left Shift	`a <<` `b`	`lshift(a, b)`
Modulo	`a % b`	`mod(a, b)`
Multiplication	`a * b`	`mul(a, b)`
Negation (Arithmetic)	`- a`	`neg(a)`
Negation (Logical)	`not a`	`not_(a)`
Right Shift	`a >> b`	`rshift(a, b)`
Sequence Repitition	`seq * i`	`repeat(seq, i)`
Slice Assignment	`seq[i:j]` = `values`	`setslice(seq, i, j, values)`
Slice Deletion	`del seq[i:j]`	`delslice(seq, i, j)`
Slicing	`seq[i:j]`	`getslice(seq, i, j)`
String Formatting	`s % o`	`mod(s, o)`
Subtraction	`a - b`	`sub(a, b)`
Truth Test	`o`	`truth(o)`
Ordering	`a < b`	`lt(a, b)`
Ordering	`a <= b`	`le(a, b)`
Equality	`a == b`	`eq(a, b)`
Difference	`a != b`	`ne(a, b)`
Ordering	`a >= b`	`ge(a, b)`
Ordering	`a > b`	`gt(a, b)`

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