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| Current File : //usr/lib/python/collections.pyc |
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S( s> Returns a new subclass of tuple with named fields.
>>> Point = namedtuple('Point', 'x y')
>>> Point.__doc__ # docstring for the new class
'Point(x, y)'
>>> p = Point(11, y=22) # instantiate with positional args or keywords
>>> p[0] + p[1] # indexable like a plain tuple
33
>>> x, y = p # unpack like a regular tuple
>>> x, y
(11, 22)
>>> p.x + p.y # fields also accessable by name
33
>>> d = p._asdict() # convert to a dictionary
>>> d['x']
11
>>> Point(**d) # convert from a dictionary
Point(x=11, y=22)
>>> p._replace(x=100) # _replace() is like str.replace() but targets named fields
Point(x=100, y=22)
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| d j Vq Wd S( t _N( t isalnum( t .0t c( ( s! /usr/lib/python2.6/collections.pys <genexpr>+ s sW Type names and field names can only contain alphanumeric characters and underscores: %rs2 Type names and field names cannot be a keyword: %ri s9 Type names and field names cannot start with a number: %rR s/ Field names cannot start with an underscore: %rs$ Encountered duplicate field name: %rt 't i iÿÿÿÿs , c s s x | ] } d | Vq Wd S( s %s=%%rN( ( R
t name( ( s! /usr/lib/python2.6/collections.pys <genexpr>< s c s s) x" | ] \ } } d | | f Vq Wd S( s %r: t[%d]N( ( R
t posR ( ( s! /usr/lib/python2.6/collections.pys <genexpr>= s sª class %(typename)s(tuple):
'%(typename)s(%(argtxt)s)'
__slots__ = ()
_fields = %(field_names)r
def __new__(_cls, %(argtxt)s):
return _tuple.__new__(_cls, (%(argtxt)s))
@classmethod
def _make(cls, iterable, new=tuple.__new__, len=len):
'Make a new %(typename)s object from a sequence or iterable'
result = new(cls, iterable)
if len(result) != %(numfields)d:
raise TypeError('Expected %(numfields)d arguments, got %%d' %% len(result))
return result
def __repr__(self):
return '%(typename)s(%(reprtxt)s)' %% self
def _asdict(t):
'Return a new dict which maps field names to their values'
return {%(dicttxt)s}
def _replace(_self, **kwds):
'Return a new %(typename)s object replacing specified fields with new values'
result = _self._make(map(kwds.pop, %(field_names)r, _self))
if kwds:
raise ValueError('Got unexpected field names: %%r' %% kwds.keys())
return result
def __getnewargs__(self):
return tuple(self)
s( %s = _property(_itemgetter(%d))
t _itemgettert __name__s
namedtuple_%st _propertyt _tuples :
t _getframet __main__( t
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R R1 t __doc__RG t classmethodR t __new__RH R RK ( ( ( s! /usr/lib/python2.6/collections.pyRA ‡ s i i id t Point3Dt zt TestResultss failed attempted( RP ( t __all__t _abcollt _collectionsR R t operatorR R t keywordR R t sysR. t FalseR R t cPickleR? R@ t TrueRA t pt AssertionErrorRK t _fieldsRO RL t doctestRQ t testmod( ( ( s! /usr/lib/python2.6/collections.pyt <module> s0
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