operator

The operator module exports functions corresponding to every Python operator and helpers (attrgetter, itemgetter, methodcaller) for building accessor callables.

Source-of-record: Lib/operator.py, Modules/_operator.c, operator docs.

Object comparisons

lt(a, b), le(a, b), eq(a, b), ne(a, b), gt(a, b), ge(a, b). Aliases: __lt__, etc.

Logical

not_(a), truth(a), is_(a, b), is_not(a, b).

Arithmetic

abs(a), add(a, b), and_(a, b), floordiv(a, b), index(a), inv(a) / invert(a), lshift(a, b), mod(a, b), mul(a, b), matmul(a, b), neg(a), or_(a, b), pos(a), pow(a, b), rshift(a, b), sub(a, b), truediv(a, b), xor(a, b).

Sequence

concat(a, b), contains(a, b), countOf(a, b), delitem(a, b), getitem(a, b), indexOf(a, b), setitem(a, b, c), length_hint(obj, default=0).

In-place

iadd, iand, iconcat, ifloordiv, ilshift, imod, imul, imatmul, ior, ipow, irshift, isub, itruediv, ixor.

Accessor factories

Factory	Returns
attrgetter('attr') / attrgetter('a', 'b.c')	Callable: obj -> obj.attr or tuple.
itemgetter(0) / itemgetter(1, 3)	Callable: seq -> seq[i] or tuple.
methodcaller('name', *args, **kw)	Callable: obj -> obj.name(*args, **kw).

Used heavily with sort(key=...), min, max, groupby.

Helpers for class dispatch

operator.call(obj, *args, **kw) is obj(*args, **kw). Used by generic dispatchers needing a function for calls.

Gopy status

Area	State
All operator functions	Complete.
attrgetter, itemgetter, methodcaller	Complete (C-fast in module/_operator).
length_hint, index, truth	Complete.

Reference

• CPython 3.14: operator.
• Lib/operator.py, Modules/_operator.c.
• module/_operator/. gopy port.