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tinylambdatinylambda
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add module operator
1 parent 64e270e commit a5bef5c

9 files changed

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‎module_operator/__init__.py‎

Whitespace-only changes.

‎module_operator/operator_attrgetter.py‎

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import operator
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class MyObj:
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"""example class for attrgetter"""
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def __init__(self, arg):
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super(MyObj, self).__init__()
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self.arg = arg
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def __repr__(self):
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return 'MyObj({})'.format(self.arg)
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l = [MyObj(i) for i in range(5)]
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print('objects:', l)
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g = operator.attrgetter('arg')
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vals = [g(i) for i in l]
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print('arg values:', vals)
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# Sort using arg
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l.reverse()
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print('reversed:', l)
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print('sorted: ', sorted(l, key=g))
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‎module_operator/operator_boolean.py‎

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import operator
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a = -1
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b = 5
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print('a =', a)
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print('b =', b)
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print()
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print('not_(a): ', operator.not_(a))
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print('truth(a): ', operator.truth(a))
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print('is_(a, b): ', operator.is_(a, b))
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print('is_not(a, b): ', operator.is_not(a, b))
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‎module_operator/operator_classes.py‎

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import operator
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class MyObj:
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"""Example for operator overloading"""
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def __init__(self, val):
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super(MyObj, self).__init__()
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self.val = val
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def __str__(self):
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return 'MyObj({})'.format(self.val)
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def __lt__(self, other):
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"""compare for less-than"""
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print('Testing {} < {}'.format(self, other))
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return self.val < other.val
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def __add__(self, other):
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"""add values"""
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print('Adding {} + {}'.format(self, other))
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return MyObj(self.val + other.val)
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a = MyObj(1)
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b = MyObj(2)
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print('Comparison:')
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print(operator.lt(a, b))
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print('\nArithmetic:')
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print(operator.add(a, b))
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‎module_operator/operator_comparisons.py‎

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import operator
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a = 1
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b = 5.0
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print('a =', a)
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print('b =', b)
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for func in (operator.lt, operator.le, operator.eq, operator.ge, operator.gt):
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print('{}(a, b): {}'.format(func.__name__, func(a, b)))
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‎module_operator/operator_inplace.py‎

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import operator
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a = -1
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b = 5.0
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c = [1, 2, 3]
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d = ['a', 'b', 'c']
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print('a =', a)
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print('b =', b)
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print('c =', c)
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print('d =', d)
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a = operator.iadd(a, b)
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print('a = iadd(a, b) =>', a)
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print()
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operator.iconcat(c, d)
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print('c = iconcat(c, d) =>', c)
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‎module_operator/operator_itemgetter.py‎

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import operator
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l = [dict(val=-1 * i) for i in range(4)]
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print('Dictionaries:')
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print(' original:', l)
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g = operator.itemgetter('val')
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vals = [g(i) for i in l]
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print(' values:', vals)
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print(' sorted:', sorted(l, key=g))
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print()
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l = [(i, i * -2) for i in range(4)]
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print('\nTuples:')
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print(' original:', l)
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g = operator.itemgetter(1)
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vals = [g(i) for i in l]
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print(' values:', vals)
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print(' sorted:', sorted(l, key=g))
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‎module_operator/operator_math.py‎

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import operator
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a = -1
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b = 5.0
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c = 2
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d = 6
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print('a =', a)
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print('b =', b)
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print('c =', c)
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print('d =', d)
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print('\nPositive/Negative:')
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print('abs(a): ', operator.abs(a))
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print('neg(a): ', operator.neg(a))
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print('neg(b): ', operator.neg(b))
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print('pos(a): ', operator.pos(a))
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print('pos(b): ', operator.pos(b))
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print('\nArithmetic:')
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print('add(a, b): ', operator.add(a, b))
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print('floordiv(a, b): ', operator.floordiv(a, b))
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print('floordiv(d, c): ', operator.floordiv(d, c))
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print('mod(a, b): ', operator.mod(a, b))
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print('mul(a, b): ', operator.mul(a, b))
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print('pow(c, d): ', operator.pow(c, d))
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print('sub(b, a): ', operator.sub(b, a))
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print('truediv(a, b): ', operator.truediv(a, b))
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print('truediv(d, c): ', operator.truediv(d, c))
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print('\nBitwise:')
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print('and_(c, d): ', operator.and_(c, d))
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print('invert(c): ', operator.invert(c))
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print('lshift(c, d): ', operator.lshift(c, d))
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print('or_(c, d): ', operator.or_(c, d))
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print('rshift(d, c): ', operator.rshift(d, c))
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print('xor(c, d): ', operator.xor(c, d))
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‎module_operator/operator_sequences.py‎

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import operator
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a = [1, 2, 3]
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b = ['a', 'b', 'c']
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print('a =', a)
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print('b =', b)
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print('\nConstructive:')
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print(' concat(a, b):', operator.concat(a, b))
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print('\nSearching:')
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print(' contains(a, 1):', operator.contains(a, 1))
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print(' contains(b, "d"):', operator.contains(b, "d"))
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print(' countOf(a, 1):', operator.countOf(a, 1))
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print(' countOf(b, "d"):', operator.countOf(b, "d"))
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print(' indexOf(a, 1):', operator.indexOf(a, 1))
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print('\nAccess items:')
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print(' getitem(b, 1):', operator.getitem(b, 1))
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print(' getitem(b, slice(1, 3))', operator.getitem(b, slice(1, 3)))
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print(' setitem(a, slice(1, 3), [4, 5])', end=' ')
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operator.setitem(a, slice(1, 3), [4, 5])
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print(a)
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print('\nDestructive:')
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print(' delitem(b, 1): ', end=' ')
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operator.delitem(b, 1)
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print(b)
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print(' delitem(a, slice(1, 3)):', end=' ')
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operator.delitem(a, slice(1, 3))
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print(a)
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