Closed

Description
In [17]: s=pd.date_range("2001-1-1", periods=12)
In [20]: ts['2001']
Out[20]:
2001-01-01 0
2001-01-02 1
2001-01-03 2
2001-01-04 3
2001-01-05 4
2001-01-06 5
2001-01-07 6
2001-01-08 7
2001-01-09 8
2001-01-10 9
2001-01-11 10
2001-01-12 11
Freq: D, dtype: int64
In [24]: df=pd.DataFrame(range(len(s)),index=s)
In [25]: df['2001']
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KeyError Traceback (most recent call last)
KeyError: u'no item named 2001'
In [27]: df.index is ts.index
Out[27]: True
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