def lrange(num1, num2=None, step=1):
"""
Allows iteration over arbitrary numbers instead of dword long numbers.
Credits go to:
http://stackoverflow.com/questions/2187135/range-and-xrange-for-13-digit-numbers-in-python
http://stackoverflow.com/users/263162/ricardo-cardenes
"""
op = operator.__lt__
if num2 is None:
num1, num2 = 0, num1
if num2 < num1:
if step > 0:
num1 = num2
op = operator.__gt__
elif step < 0:
num1 = num2
while op(num1, num2):
yield num1
num1 += step
python类__lt__()的实例源码
def get_operator(op):
if not op: return None
if "ge" in op or ">=" in op:
opr = operator.__ge__
elif "gt" in op or ">" in op:
opr = operator.__gt__
elif "le" in op or "<=" in op:
opr = operator.__le__
elif "lt" in op or "<" in op:
opr = operator.__lt__
elif "eq" in op or "=" in op or "==" in op:
opr = operator.eq
elif "ne" in op or "!=" in op or "<>" in op:
opr = operator.ne
return opr
def assert_array_less(x, y, err_msg='', verbose=True):
"""
Checks that x is smaller than y elementwise.
"""
assert_array_compare(operator.__lt__, x, y,
err_msg=err_msg, verbose=verbose,
header='Arrays are not less-ordered')
def __lt__(self, rhs):
return op_relational(self, rhs, operator.__lt__)
def __lt__(self, rhs):
return op_relational(self, rhs, operator.__lt__)
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
def test_misbehavin(self):
class Misb:
def __lt__(self_, other): return 0
def __gt__(self_, other): return 0
def __eq__(self_, other): return 0
def __le__(self_, other): self.fail("This shouldn't happen")
def __ge__(self_, other): self.fail("This shouldn't happen")
def __ne__(self_, other): self.fail("This shouldn't happen")
a = Misb()
b = Misb()
self.assertEqual(a<b, 0)
self.assertEqual(a==b, 0)
self.assertEqual(a>b, 0)
def test_goodentry(self):
# This test exercises the final call to PyObject_RichCompare()
# in Objects/listobject.c::list_richcompare()
class Good:
def __lt__(self, other):
return True
x = [Good()]
y = [Good()]
for op in opmap["lt"]:
self.assertIs(op(x, y), True)
def assert_array_less(x, y, err_msg='', verbose=True):
"""
Checks that x is smaller than y elementwise.
"""
assert_array_compare(operator.__lt__, x, y,
err_msg=err_msg, verbose=verbose,
header='Arrays are not less-ordered')
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
def test_misbehavin(self):
class Misb:
def __lt__(self_, other): return 0
def __gt__(self_, other): return 0
def __eq__(self_, other): return 0
def __le__(self_, other): self.fail("This shouldn't happen")
def __ge__(self_, other): self.fail("This shouldn't happen")
def __ne__(self_, other): self.fail("This shouldn't happen")
def __cmp__(self_, other): raise RuntimeError, "expected"
a = Misb()
b = Misb()
self.assertEqual(a<b, 0)
self.assertEqual(a==b, 0)
self.assertEqual(a>b, 0)
self.assertRaises(RuntimeError, cmp, a, b)
def test_goodentry(self):
# This test exercises the final call to PyObject_RichCompare()
# in Objects/listobject.c::list_richcompare()
class Good:
def __lt__(self, other):
return True
x = [Good()]
y = [Good()]
for op in opmap["lt"]:
self.assertIs(op(x, y), True)
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
def test_misbehavin(self):
class Misb:
def __lt__(self_, other): return 0
def __gt__(self_, other): return 0
def __eq__(self_, other): return 0
def __le__(self_, other): self.fail("This shouldn't happen")
def __ge__(self_, other): self.fail("This shouldn't happen")
def __ne__(self_, other): self.fail("This shouldn't happen")
def __cmp__(self_, other): raise RuntimeError, "expected"
a = Misb()
b = Misb()
self.assertEqual(a<b, 0)
self.assertEqual(a==b, 0)
self.assertEqual(a>b, 0)
self.assertRaises(RuntimeError, cmp, a, b)
def test_goodentry(self):
# This test exercises the final call to PyObject_RichCompare()
# in Objects/listobject.c::list_richcompare()
class Good:
def __lt__(self, other):
return True
x = [Good()]
y = [Good()]
for op in opmap["lt"]:
self.assertIs(op(x, y), True)
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
def test_misbehavin(self):
class Misb:
def __lt__(self_, other): return 0
def __gt__(self_, other): return 0
def __eq__(self_, other): return 0
def __le__(self_, other): self.fail("This shouldn't happen")
def __ge__(self_, other): self.fail("This shouldn't happen")
def __ne__(self_, other): self.fail("This shouldn't happen")
a = Misb()
b = Misb()
self.assertEqual(a<b, 0)
self.assertEqual(a==b, 0)
self.assertEqual(a>b, 0)
def test_goodentry(self):
# This test exercises the final call to PyObject_RichCompare()
# in Objects/listobject.c::list_richcompare()
class Good:
def __lt__(self, other):
return True
x = [Good()]
y = [Good()]
for op in opmap["lt"]:
self.assertIs(op(x, y), True)
testutils.py 文件源码
项目：PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda
作者: SignalMedia
项目源码
文件源码
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def assert_array_less(x, y, err_msg='', verbose=True):
"""
Checks that x is smaller than y elementwise.
"""
assert_array_compare(operator.__lt__, x, y,
err_msg=err_msg, verbose=verbose,
header='Arrays are not less-ordered')
def assert_array_less(x, y, err_msg='', verbose=True):
"""
Checks that x is smaller than y elementwise.
"""
assert_array_compare(operator.__lt__, x, y,
err_msg=err_msg, verbose=verbose,
header='Arrays are not less-ordered')
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
def test_misbehavin(self):
class Misb:
def __lt__(self_, other): return 0
def __gt__(self_, other): return 0
def __eq__(self_, other): return 0
def __le__(self_, other): self.fail("This shouldn't happen")
def __ge__(self_, other): self.fail("This shouldn't happen")
def __ne__(self_, other): self.fail("This shouldn't happen")
def __cmp__(self_, other): raise RuntimeError, "expected"
a = Misb()
b = Misb()
self.assertEqual(a<b, 0)
self.assertEqual(a==b, 0)
self.assertEqual(a>b, 0)
self.assertRaises(RuntimeError, cmp, a, b)
def test_goodentry(self):
# This test exercises the final call to PyObject_RichCompare()
# in Objects/listobject.c::list_richcompare()
class Good:
def __lt__(self, other):
return True
x = [Good()]
y = [Good()]
for op in opmap["lt"]:
self.assertIs(op(x, y), True)
def __lt__(self, other):
return self.x < other
def __lt__(self, other):
return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
