Answers for "using pandas dtypes when read)csv"

pandas read csv

df = pd.read_csv('data.csv')

pandas read csv specify column dtype

import pandas as pd
import numpy as np

data = '''\
1,2,3
4,5,6'''

fileobj = pd.compat.StringIO(data)
df = pd.read_csv(fileobj, dtype={0:'int8',1:'int8',2:'int32'}, header=None)

print(df.dtypes)