Python如何使用熊猫编写新的CSV文件

Question

import pandas as pd
pd.__version__
df = pd.read_csv('myfile.csv', usecols=[0,3,4,5,9])
print (df)

我只想从我的csv文件中返回这些特定的列并将其写入新的csv文件中？

我该怎么做

到目前为止，我可以读取数据！但不确定如何写

绝对PYTHON初学者警报

Answer 1

根据您的输入，我认为您正在尝试实现这样的目标？

#import library
import pandas as pd
pd.__version__

# read the csv with all columns
df = pd.read_csv('myfile.csv')
print (df)

# create csv with filtered columns
filter_cols = ["0","3","4","5","9"]
df.to_csv('output.csv', columns = filter_cols)