PYTHON

dtype in pandas

df = pd.DataFrame({'float': [1.0],
                   'int': [1],
                   'datetime': [pd.Timestamp('20180310')],
                   'string': ['foo']})
df.dtypes
float              float64
int                  int64
datetime    datetime64[ns]
string              object
dtype: object

df dtype

d = {'col1': [1, 2], 'col2': [3, 4]}
>>> df = pd.DataFrame(data=d)
>>> df.dtypes
col1    int64
col2    int64
dtype: object