Closed
Description
ndarray.take accepts scalars, and returns a scalar. We should probably make that part of the interface, or document that we don't support it.
In [18]: np.array([1, 2]).take(0)
Out[18]: 1Categorical currently returns an invalid categorical:
In [19]: res = pd.Categorical([0, 1]).take(0)
In [20]: type(res)
Out[20]: pandas.core.arrays.categorical.Categorical
In [21]: res
Out[21]: ---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
~/Envs/pandas-dev/lib/python3.6/site-packages/IPython/core/formatters.py in __call__(self, obj)
700 type_pprinters=self.type_printers,
701 deferred_pprinters=self.deferred_printers)
--> 702 printer.pretty(obj)
703 printer.flush()
704 return stream.getvalue()
~/Envs/pandas-dev/lib/python3.6/site-packages/IPython/lib/pretty.py in pretty(self, obj)
398 if cls is not object \
399 and callable(cls.__dict__.get('__repr__')):
--> 400 return _repr_pprint(obj, self, cycle)
401
402 return _default_pprint(obj, self, cycle)
~/Envs/pandas-dev/lib/python3.6/site-packages/IPython/lib/pretty.py in _repr_pprint(obj, p, cycle)
693 """A pprint that just redirects to the normal repr function."""
694 # Find newlines and replace them with p.break_()
--> 695 output = repr(obj)
696 for idx,output_line in enumerate(output.splitlines()):
697 if idx:
~/sandbox/pandas/pandas/core/base.py in __repr__(self)
80 Yields Bytestring in Py2, Unicode String in py3.
81 """
---> 82 return str(self)
83
84
~/sandbox/pandas/pandas/core/base.py in __str__(self)
59
60 if compat.PY3:
---> 61 return self.__unicode__()
62 return self.__bytes__()
63
~/sandbox/pandas/pandas/core/arrays/categorical.py in __unicode__(self)
1942 """ Unicode representation. """
1943 _maxlen = 10
-> 1944 if len(self._codes) > _maxlen:
1945 result = self._tidy_repr(_maxlen)
1946 elif len(self._codes) > 0:
TypeError: len() of unsized object- IntervalArray.take fails on
take - SparseArray allows it.