split()得到了意外的关键字参数'expand' [英] split() got an unexpected keyword argument 'expand'

问题描述

在python2中，我可以从这个熊猫系列中学习

In python2 i could go from this pandas series

        0
0    [a,b,c]

将s.str.split('，'，expand = True)放入其中:

with s.str.split(',',expand=True) into this:

  0 1 2

0 a b c

，现在(ipython3)我不能，因为缺少"expand"参数.我该怎么办呢?

and now (ipython3) i cant, because lack of "expand" argument. How I can do it in other way?

推荐答案

您应检查环境的熊猫版本.根据 pandas文档，展开是最近添加的，因此您好像以某种方式退回了版本.

You should check your environment's pandas version. According to the pandas docs, expand was recently added so it looks like you regressed your version somehow.

expand:布尔值，默认为False如果为True，则返回DataFrame/MultiIndex 扩大维度.如果为False，则返回Series/Index.新进 版本0.16.1.

expand : bool, default False If True, return DataFrame/MultiIndex expanding dimensionality. If False, return Series/Index. New in version 0.16.1.

基于

Based on the old docs it looks like you can do the same thing by specifying the return_type='frame' parameter.

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