Closed
Description
In pandas 1.0.5, indexing a Series with a multidimensional key raised an IndexError. In 1.1.0 it raises a TypeError:
In [1]: import pandas as pd
In [2]: s = pd.Series(pd.date_range("2000", periods=4, tz="CET"))
In [3]: s[:, None]# 1.0.5
In [3]: s[:, None]
---------------------------------------------------------------------------
IndexError Traceback (most recent call last)
<ipython-input-3-89522aec9762> in <module>
----> 1 s[:, None]
IndexError: only integers, slices (`:`), ellipsis (`...`), numpy.newaxis (`None`) and integer or boolean arrays are valid indices# 1.1.0
In [3]: s[:, None]
/Users/taugspurger/sandbox/pandas/pandas/core/indexes/range.py:716: FutureWarning: Support for multi-dimensional indexing (e.g. `obj[:, None]`) is deprecated and will be removed in a future version. Convert to a numpy array before indexing instead.
return super().__getitem__(key)
---------------------------------------------------------------------------
AssertionError Traceback (most recent call last)
<ipython-input-3-89522aec9762> in <module>
----> 1 s[:, None]
~/sandbox/pandas/pandas/core/series.py in __getitem__(self, key)
906 return self._get_values(key)
907
--> 908 return self._get_with(key)
909
910 def _get_with(self, key):
~/sandbox/pandas/pandas/core/series.py in _get_with(self, key)
921 )
922 elif isinstance(key, tuple):
--> 923 return self._get_values_tuple(key)
924
925 elif not is_list_like(key):
~/sandbox/pandas/pandas/core/series.py in _get_values_tuple(self, key)
951 # mpl hackaround
952 if com.any_none(*key):
--> 953 result = self._get_values(key)
954 deprecate_ndim_indexing(result, stacklevel=5)
955 return result
~/sandbox/pandas/pandas/core/series.py in _get_values(self, indexer)
966 def _get_values(self, indexer):
967 try:
--> 968 return self._constructor(self._mgr.get_slice(indexer)).__finalize__(self,)
969 except ValueError:
970 # mpl compat if we look up e.g. ser[:, np.newaxis];
~/sandbox/pandas/pandas/core/internals/managers.py in get_slice(self, slobj, axis)
1561 array = blk._slice(slobj)
1562 block = blk.make_block_same_class(array, placement=slice(0, len(array)))
-> 1563 return type(self)(block, self.index[slobj])
1564
1565 @property
~/sandbox/pandas/pandas/core/internals/managers.py in __init__(self, block, axis, do_integrity_check, fastpath)
1505 ):
1506 assert isinstance(block, Block), type(block)
-> 1507 assert isinstance(axis, Index), type(axis)
1508
1509 if fastpath is not lib.no_default:
AssertionError: <class 'numpy.ndarray'>We should continue to raise an IndexError here.
Reported in matplotlib/matplotlib#18158.