python中的operator库

这个模块提供了一系列的函数操作。比如，operator.add(x, y)等于x+y 

a = [1,2,3]

b = [5,6,7]

c = map(operator.mul, a, b)

c的值就为[5, 12, 21]

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).

countOf(...)
countOf(a, b) -- Return the number of times b occurs in a.

delitem(...)
delitem(a, b) -- Same as del a[b].

delslice(...)
delslice(a, b, c) -- Same as del a[b:c].

div(...)
div(a, b) -- Same as a / b when __future__.division is not in effect.

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].

getslice(...)
getslice(a, b, c) -- Same as a[b:c].

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.

idiv(...)
idiv(a, b) -- Same as a /= b when __future__.division is not in effect.

ifloordiv(...)
ifloordiv(a, b) -- Same as a //= b.

ilshift(...)
ilshift(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__()

indexOf(...)
indexOf(a, b) -- Return the first index of b in a.

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.

irepeat(...)
irepeat(a, b) -- Same as a *= b, where a is a sequence, and b is an integer.

irshift(...)
irshift(a, b) -- Same as a >>= b.

isCallable(...)
isCallable(a) -- Same as callable(a).

isMappingType(...)
isMappingType(a) -- Return True if a has a mapping type, False otherwise.

isNumberType(...)
isNumberType(a) -- Return True if a has a numeric type, False otherwise.

isSequenceType(...)
isSequenceType(a) -- Return True if a has a sequence type, False otherwise.

is_(...)
is_(a, b) -- Same as a is b.
is_not(...)
is_not(a, b) -- Same as a is not b.

isub(...)
isub(a, b) -- Same as a -= b.

itruediv(...)
itruediv(a, b) -- Same as a /= b when __future__.division is in effect.

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.

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.

repeat(...)
repeat(a, b) -- Return a * b, where a is a sequence, and b is an integer.

rshift(...)
rshift(a, b) -- Same as a >> b.

sequenceIncludes(...)
sequenceIncludes(a, b) -- Same as b in a (note reversed operands; deprecated).

setitem(...)
setitem(a, b, c) -- Same as a[b] = c.

setslice(...)
setslice(a, b, c, d) -- Same as a[b:c] = d.

sub(...)
sub(a, b) -- Same as a - b.

truediv(...)
truediv(a, b) -- Same as a / b when __future__.division is in effect.

truth(...)
truth(a) -- Return True if a is true, False otherwise.

xor(...)
xor(a, b) -- Same as a ^ b.Python中的operate库