In [2]:

    

from operator import *
a = -1 
b = 5
print('not_(a)', not_(a))
print('truth(a)', truth(a))
print('is_(a, b)', is_(a,b))
print('is_not(a, b)', is_not(a,b))


    

    




not_(a) False
truth(a) True
is_(a, b) False
is_not(a, b) True

In [3]:

    

from operator import *

a = 1
b = 5.0

print('a =', a)
print('b =', b)
for func in (lt, le, eq, ne, ge, gt):
    print('{}(a, b): {}'.format(func.__name__, func(a, b)))


    

    




a = 1
b = 5.0
lt(a, b): True
le(a, b): True
eq(a, b): False
ne(a, b): True
ge(a, b): False
gt(a, b): False

In [4]:

    

from operator import *

a = -1
b = 5.0
c = 2
d = 6

print('a =', a)
print('b =', b)
print('c =', c)
print('d =', d)

print('\nPositive/Negative:')
print('abs(a):', abs(a))
print('neg(a):', neg(a))
print('neg(b):', neg(b))
print('pos(a):', pos(a))
print('pos(b):', pos(b))

print('\nArithmetic:')
print('add(a, b)     :', add(a, b))
print('floordiv(a, b):', floordiv(a, b))
print('floordiv(d, c):', floordiv(d, c))
print('mod(a, b)     :', mod(a, b))
print('mul(a, b)     :', mul(a, b))
print('pow(c, d)     :', pow(c, d))
print('sub(b, a)     :', sub(b, a))
print('truediv(a, b) :', truediv(a, b))
print('truediv(d, c) :', truediv(d, c))

print('\nBitwise:')
print('and_(c, d)  :', and_(c, d))
print('invert(c)   :', invert(c))
print('lshift(c, d):', lshift(c, d))
print('or_(c, d)   :', or_(c, d))
print('rshift(d, c):', rshift(d, c))
print('xor(c, d)   :', xor(c, d))


    

    




a = -1
b = 5.0
c = 2
d = 6

Positive/Negative:
abs(a): 1
neg(a): 1
neg(b): -5.0
pos(a): -1
pos(b): 5.0

Arithmetic:
add(a, b)     : 4.0
floordiv(a, b): -1.0
floordiv(d, c): 3
mod(a, b)     : 4.0
mul(a, b)     : -5.0
pow(c, d)     : 64
sub(b, a)     : 6.0
truediv(a, b) : -0.2
truediv(d, c) : 3.0

Bitwise:
and_(c, d)  : 2
invert(c)   : -3
lshift(c, d): 128
or_(c, d)   : 6
rshift(d, c): 1
xor(c, d)   : 4

In [5]:

    

from operator import *

a = [1, 2, 3]
b = ['a', 'b', 'c']

print('a =', a)
print('b =', b)

print('\nConstructive:')
print('  concat(a, b):', concat(a, b))

print('\nSearching:')
print('  contains(a, 1)  :', contains(a, 1))
print('  contains(b, "d"):', contains(b, "d"))
print('  countOf(a, 1)   :', countOf(a, 1))
print('  countOf(b, "d") :', countOf(b, "d"))
print('  indexOf(a, 5)   :', indexOf(a, 1))

print('\nAccess Items:')
print('  getitem(b, 1)                  :',
      getitem(b, 1))
print('  getitem(b, slice(1, 3))        :',
      getitem(b, slice(1, 3)))
print('  setitem(b, 1, "d")             :', end=' ')
setitem(b, 1, "d")
print(b)
print('  setitem(a, slice(1, 3), [4, 5]):', end=' ')
setitem(a, slice(1, 3), [4, 5])
print(a)

print('\nDestructive:')
print('  delitem(b, 1)          :', end=' ')
delitem(b, 1)
print(b)
print('  delitem(a, slice(1, 3)):', end=' ')
delitem(a, slice(1, 3))
print(a)


    

    




a = [1, 2, 3]
b = ['a', 'b', 'c']

Constructive:
  concat(a, b): [1, 2, 3, 'a', 'b', 'c']

Searching:
  contains(a, 1)  : True
  contains(b, "d"): False
  countOf(a, 1)   : 1
  countOf(b, "d") : 0
  indexOf(a, 5)   : 0

Access Items:
  getitem(b, 1)                  : b
  getitem(b, slice(1, 3))        : ['b', 'c']
  setitem(b, 1, "d")             : ['a', 'd', 'c']
  setitem(a, slice(1, 3), [4, 5]): [1, 4, 5]

Destructive:
  delitem(b, 1)          : ['a', 'c']
  delitem(a, slice(1, 3)): [1]

In [6]:

    

from operator import *


class MyObj:
    """Example for operator overloading"""

    def __init__(self, val):
        super(MyObj, self).__init__()
        self.val = val

    def __str__(self):
        return 'MyObj({})'.format(self.val)

    def __lt__(self, other):
        """compare for less-than"""
        print('Testing {} < {}'.format(self, other))
        return self.val < other.val

    def __add__(self, other):
        """add values"""
        print('Adding {} + {}'.format(self, other))
        return MyObj(self.val + other.val)


a = MyObj(1)
b = MyObj(2)

print('Comparison:')
print(a<b)

print('\nArithmetic:')
print(a+b)


    

    




Comparison:
Testing MyObj(1) < MyObj(2)
True

Arithmetic:
Adding MyObj(1) + MyObj(2)
MyObj(3)