> For the complete documentation index, see [llms.txt](https://huataihuang.gitbook.io/cloud-atlas-draft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://huataihuang.gitbook.io/cloud-atlas-draft/develop/python/startup/read_two_file_line_simultaneously.md).

# python同时读取2个文件

需要同时读取2个文件，一行行处理合并列

```
from itertools import izip

with open("textfile1") as textfile1, open("textfile2") as textfile2: 
    for x, y in izip(textfile1, textfile2):
        x = x.strip()
        y = y.strip()
        print("{0}\t{1}".format(x, y))
```

> In Python 3, replace itertools.izip with the built-in zip
>
> 参考 [Read two textfile line by line simultaneously -python](http://stackoverflow.com/questions/11295171/read-two-textfile-line-by-line-simultaneously-python)