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namedtuple definition
from builtins import property as _property, tuple as _tuple
from operator import itemgetter as _itemgetter
from collections import OrderedDict
class point(tuple):
'point(x, y, z)'
__slots__ = ()
_fields = ('x', 'y', 'z')
def __new__(_cls, x, y, z):
'Create new instance of point(x, y, z)'
return _tuple.__new__(_cls, (x, y, z))
def _make(cls, iterable, new=tuple.__new__, len=len):
'Make a new point object from a sequence or iterable'
result = new(cls, iterable)
if len(result) != 3:
raise TypeError('Expected 3 arguments, got %d' % len(result))
return result
def _replace(_self, **kwds):
'Return a new point object replacing specified fields with new values'
result = _self._make(map(kwds.pop, ('x', 'y', 'z'), _self))
if kwds:
raise ValueError('Got unexpected field names: %r' % list(kwds))
return result
def __repr__(self):
'Return a nicely formatted representation string'
return self.__class__.__name__ + '(x=%r, y=%r, z=%r)' % self
def _asdict(self):
'Return a new OrderedDict which maps field names to their values.'
return OrderedDict(zip(self._fields, self))
def __getnewargs__(self):
'Return self as a plain tuple. Used by copy and pickle.'
return tuple(self)
x = _property(_itemgetter(0), doc='Alias for field number 0')
y = _property(_itemgetter(1), doc='Alias for field number 1')
z = _property(_itemgetter(2), doc='Alias for field number 2')
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