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Help on module operator: NAME operator - Operator interface. MODULE REFERENCE https://docs.python.org/3.10/library/operator.html The following documentation is automatically generated from the Python source files. It may be incomplete, incorrect or include features that are considered implementation detail and may vary between Python implementations. When in doubt, consult the module reference at the location listed above. DESCRIPTION This module exports a set of functions implemented in C corresponding to the intrinsic operators of Python. For example, operator.add(x, y) is equivalent to the expression x+y. The function names are those used for special methods; variants without leading and trailing '__' are also provided for convenience. CLASSES builtins.object attrgetter itemgetter methodcaller class attrgetter(builtins.object) | attrgetter(attr, ...) --> attrgetter object | | Return a callable object that fetches the given attribute(s) from its operand. | After f = attrgetter('name'), the call f(r) returns r.name. | After g = attrgetter('name', 'date'), the call g(r) returns (r.name, r.date). | After h = attrgetter('name.first', 'name.last'), the call h(r) returns | (r.name.first, r.name.last). | | Methods defined here: | | __call__(self, /, *args, **kwargs) | Call self as a function. | | __getattribute__(self, name, /) | Return getattr(self, name). | | __reduce__(...) | Return state information for pickling | | __repr__(self, /) | Return repr(self). | | ---------------------------------------------------------------------- | Static methods defined here: | | __new__(*args, **kwargs) from builtins.type | Create and return a new object. See help(type) for accurate signature. class itemgetter(builtins.object) | itemgetter(item, ...) --> itemgetter object | | Return a callable object that fetches the given item(s) from its operand. | After f = itemgetter(2), the call f(r) returns r[2]. | After g = itemgetter(2, 5, 3), the call g(r) returns (r[2], r[5], r[3]) | | Methods defined here: | | __call__(self, /, *args, **kwargs) | Call self as a function. | | __getattribute__(self, name, /) | Return getattr(self, name). | | __reduce__(...) | Return state information for pickling | | __repr__(self, /) | Return repr(self). | | ---------------------------------------------------------------------- | Static methods defined here: | | __new__(*args, **kwargs) from builtins.type | Create and return a new object. See help(type) for accurate signature. class methodcaller(builtins.object) | methodcaller(name, ...) --> methodcaller object | | Return a callable object that calls the given method on its operand. | After f = methodcaller('name'), the call f(r) returns r.name(). | After g = methodcaller('name', 'date', foo=1), the call g(r) returns | r.name('date', foo=1). | | Methods defined here: | | __call__(self, /, *args, **kwargs) | Call self as a function. | | __getattribute__(self, name, /) | Return getattr(self, name). | | __reduce__(...) | Return state information for pickling | | __repr__(self, /) | Return repr(self). | | ---------------------------------------------------------------------- | Static methods defined here: | | __new__(*args, **kwargs) from builtins.type | Create and return a new object. See help(type) for accurate signature. FUNCTIONS __abs__ = abs(a, /) Same as abs(a). __add__ = add(a, b, /) Same as a + b. __and__ = and_(a, b, /) Same as a & b. __concat__ = concat(a, b, /) Same as a + b, for a and b sequences. __contains__ = contains(a, b, /) Same as b in a (note reversed operands). __delitem__ = delitem(a, b, /) Same as del a[b]. __eq__ = eq(a, b, /) Same as a == b. __floordiv__ = floordiv(a, b, /) Same as a // b. __ge__ = ge(a, b, /) Same as a >= b. __getitem__ = getitem(a, b, /) Same as a[b]. __gt__ = gt(a, b, /) Same as a > b. __iadd__ = iadd(a, b, /) Same as a += b. __iand__ = iand(a, b, /) Same as a &= b. __iconcat__ = iconcat(a, b, /) Same as a += b, for a and b sequences. __ifloordiv__ = ifloordiv(a, b, /) Same as a //= b. __ilshift__ = ilshift(a, b, /) Same as a <<= b. __imatmul__ = imatmul(a, b, /) Same as a @= b. __imod__ = imod(a, b, /) Same as a %= b. __imul__ = imul(a, b, /) Same as a *= b. __index__ = index(a, /) Same as a.__index__() __inv__ = inv(a, /) Same as ~a. __invert__ = invert(a, /) Same as ~a. __ior__ = ior(a, b, /) Same as a |= b. __ipow__ = ipow(a, b, /) Same as a **= b. __irshift__ = irshift(a, b, /) Same as a >>= b. __isub__ = isub(a, b, /) Same as a -= b. __itruediv__ = itruediv(a, b, /) Same as a /= b. __ixor__ = ixor(a, b, /) Same as a ^= b. __le__ = le(a, b, /) Same as a <= b. __lshift__ = lshift(a, b, /) Same as a << b. __lt__ = lt(a, b, /) Same as a < b. __matmul__ = matmul(a, b, /) Same as a @ b. __mod__ = mod(a, b, /) Same as a % b. __mul__ = mul(a, b, /) Same as a * b. __ne__ = ne(a, b, /) Same as a != b. __neg__ = neg(a, /) Same as -a. __not__ = not_(a, /) Same as not a. __or__ = or_(a, b, /) Same as a | b. __pos__ = pos(a, /) Same as +a. __pow__ = pow(a, b, /) Same as a ** b. __rshift__ = rshift(a, b, /) Same as a >> b. __setitem__ = setitem(a, b, c, /) Same as a[b] = c. __sub__ = sub(a, b, /) Same as a - b. __truediv__ = truediv(a, b, /) Same as a / b. __xor__ = xor(a, b, /) Same as a ^ b. abs(a, /) Same as abs(a). add(a, b, /) Same as a + b. and_(a, b, /) Same as a & b. concat(a, b, /) Same as a + b, for a and b sequences. contains(a, b, /) Same as b in a (note reversed operands). countOf(a, b, /) Return the number of items in a which are, or which equal, b. delitem(a, b, /) Same as del a[b]. eq(a, b, /) Same as a == b. floordiv(a, b, /) Same as a // b. ge(a, b, /) Same as a >= b. getitem(a, b, /) Same as a[b]. gt(a, b, /) Same as a > b. iadd(a, b, /) Same as a += b. iand(a, b, /) Same as a &= b. iconcat(a, b, /) Same as a += b, for a and b sequences. ifloordiv(a, b, /) Same as a //= b. ilshift(a, b, /) Same as a <<= b. imatmul(a, b, /) Same as a @= b. imod(a, b, /) Same as a %= b. imul(a, b, /) Same as a *= b. index(a, /) Same as a.__index__() indexOf(a, b, /) Return the first index of b in a. inv(a, /) Same as ~a. invert(a, /) Same as ~a. ior(a, b, /) Same as a |= b. ipow(a, b, /) Same as a **= b. irshift(a, b, /) Same as a >>= b. is_(a, b, /) Same as a is b. is_not(a, b, /) Same as a is not b. isub(a, b, /) Same as a -= b. itruediv(a, b, /) Same as a /= b. ixor(a, b, /) Same as a ^= b. le(a, b, /) Same as a <= b. length_hint(obj, default=0, /) Return an estimate of the number of items in obj. This is useful for presizing containers when building from an iterable. If the object supports len(), the result will be exact. Otherwise, it may over- or under-estimate by an arbitrary amount. The result will be an integer >= 0. lshift(a, b, /) Same as a << b. lt(a, b, /) Same as a < b. matmul(a, b, /) Same as a @ b. mod(a, b, /) Same as a % b. mul(a, b, /) Same as a * b. ne(a, b, /) Same as a != b. neg(a, /) Same as -a. not_(a, /) Same as not a. or_(a, b, /) Same as a | b. pos(a, /) Same as +a. pow(a, b, /) Same as a ** b. rshift(a, b, /) Same as a >> b. setitem(a, b, c, /) Same as a[b] = c. sub(a, b, /) Same as a - b. truediv(a, b, /) Same as a / b. truth(a, /) Return True if a is true, False otherwise. xor(a, b, /) Same as a ^ b. DATA __all__ = ['abs', 'add', 'and_', 'attrgetter', 'concat', 'contains', '... FILE /usr/lib/python3.10/operator.py
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