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# mode: run
def slice1(stop):
"""
>>> list(range(8))
[0, 1, 2, 3, 4, 5, 6, 7]
>>> list(range(10))[slice1(8)]
[0, 1, 2, 3, 4, 5, 6, 7]
>>> slice1(1)
slice(None, 1, None)
>>> slice1(10)
slice(None, 10, None)
>>> slice1(None)
slice(None, None, None)
>>> slice1(1) == slice(1)
True
>>> slice1(None) == slice(None)
True
"""
return slice(stop)
def slice1_const():
"""
>>> slice1_const() == slice(12)
True
"""
return slice(12)
def slice2(start, stop):
"""
>>> list(range(2, 8))
[2, 3, 4, 5, 6, 7]
>>> list(range(10))[slice2(2, 8)]
[2, 3, 4, 5, 6, 7]
>>> slice2(1, 10)
slice(1, 10, None)
>>> slice2(None, 10)
slice(None, 10, None)
>>> slice2(4, None)
slice(4, None, None)
"""
return slice(start, stop)
def slice2_const():
"""
>>> slice2_const() == slice(None, 12)
True
"""
return slice(None, 12)
def slice3(start, stop, step):
"""
>>> list(range(2, 8, 3))
[2, 5]
>>> list(range(10))[slice3(2, 8, 3)]
[2, 5]
>>> slice3(2, None, 3)
slice(2, None, 3)
>>> slice3(None, 3, 2)
slice(None, 3, 2)
"""
return slice(start, stop, step)
def slice3_const():
"""
>>> slice3_const() == slice(12, None, 34)
True
"""
return slice(12, None, 34)
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