Traceback (most recent call last): File "E:\pycharm\project1\main.py", line 541, in <module> df_y23_sale['WN'] = [''.join([str(df_y23_sale['W'][i]), df_y23_sale['week_nums'][i]]) for i in range(len(df_y23_sale['W']))] File "E:\pycharm\project1\main.py", line 541, in <listcomp> df_y23_sale['WN'] = [''.join([str(df_y23_sale['W'][i]), df_y23_sale['week_nums'][i]]) for i in range(len(df_y23_sale['W']))] TypeError: sequence item 1: expected str instance, Series found 请解决以上的报错
时间: 2023-10-10 18:07:44 浏览: 66
linux 下 pip3 报错“ File “/usr/bin/pip3”, line 9, in from pip import mainImportError: canno”处理
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这个错误是因为代码中的变量 df_y23_sale['week_nums'] 是一个 Pandas 的 Series 对象,而代码中使用了字符串拼接操作,所以需要将这个 Series 转换为字符串类型。
可以使用 Pandas 中的 astype() 方法将 Series 转换为字符串类型。可以按照以下方式修改代码:
```
df_y23_sale['WN'] = [''.join([str(df_y23_sale['W'][i]), str(df_y23_sale['week_nums'][i].astype(str))]) for i in range(len(df_y23_sale['W']))]
```
这样就可以避免上述错误。
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