dataframe 型の確認

df.dtypes

import pandas as pd

df = pd.DataFrame([[25,'pika',88],[131,'rara',80],[143,'gon',82],
                    [3,'fushi',84],[6,'kage',84],[9,'kame',84]],
                    columns=['no','name','level'])
print(df)
"""
    no   name  level
0   25   pika     88
1  131   rara     80
2  143    gon     82
3    3  fushi     84
4    6   kage     84
5    9   kame     84
"""

print(df.dtypes)
"""
no        int64
name     object
level     int64
dtype: object
"""