检查熊猫日期栏

Question

I have this:

dfData['dt']
Out[53]: 
0   2013-01-02
1   2016-10-20
Name: dt, dtype: datetime64[ns]

I try this:

dfData['dt'].dtype==np.datetime64
Out[56]: False

I also try this:

isinstance(dfData['dt'], pd.DatetimeIndex)
Out[62]: False

What am I doing wrong? How can I identify general date types?

Answer 1

Use function numpy.issubdtype :

print (np.issubdtype(dfData['dt'].dtype, np.datetime64))
True

Pandas solution with functions for check dtypes :

from pandas.api.types import is_datetime64_any_dtype

print (is_datetime64_any_dtype(dfData['dt'].dtype))
True