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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)

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pandas read csv specify column dtype

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