大Python的扁平指数

Question

我对python非常陌生，我一直在玩Panda dataframes，但是当我使用groupby时，我不再能够使用标签迭代数据帧。在

有什么能帮我的吗？在

newDF=df[df['Currency'].str.contains(currency)&df['Description'].str.contains('fx')]
newDF=newDF.rename(index=str, columns={ "Paid": "Withdrawn"})

moneyWithdrawnByUserDF=pd.DataFrame(newDF.groupby(['FirstName'])[['Withdrawn']].sum())

for index,row in moneyWithdrawnByUserDF.iterrows():
  print row['FirstName']

我得到的输出/错误如下：

^{pr2}$

谢谢你

Answer 1

我想你需要改变：

moneyWithdrawnByUserDF=pd.DataFrame(newDF.groupby(['FirstName'])[['Withdrawn']].sum())

由^{}：

^{pr2}$

或DataFrame的参数as_index=False：

moneyWithdrawnByUserDF= newDF.groupby(['FirstName'], as_index=False)['Withdrawn'].sum()