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# mode: run
# tag: METH_FASTCALL
import sys
import struct
from collections import deque
pack = struct.pack
def deque_methods(v):
"""
>>> deque_methods(2)
[1, 2, 3, 4]
"""
d = deque([1, 3, 4])
assert list(d) == [1,3,4]
if sys.version_info >= (3, 5):
d.insert(1, v)
else:
# deque has no 2-args methods in older Python versions
d.rotate(-1)
d.appendleft(2)
d.rotate(1)
assert list(d) == [1,2,3,4]
d.rotate(len(d) // 2)
assert list(d) == [3,4,1,2]
d.rotate(len(d) // 2)
assert list(d) == [1,2,3,4]
return list(d)
def struct_methods(v):
"""
>>> i, lf, i2, f = struct_methods(2)
>>> struct.unpack('i', i)
(2,)
>>> struct.unpack('i', i2)
(2,)
>>> struct.unpack('lf', lf)
(2, 4.0)
>>> struct.unpack('f', f)
(2.0,)
"""
local_pack = pack
return [
struct.pack('i', v),
struct.pack('lf', v, v*2),
pack('i', v),
local_pack('f', v),
]
cdef class SelfCast:
"""
>>> f = SelfCast()
>>> f.index_of_self([f])
0
>>> f.index_of_self([]) # doctest: +ELLIPSIS
Traceback (most recent call last):
ValueError...
"""
def index_of_self(self, list orbit not None):
return orbit.index(self)
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