我如何在python中外部联接两个不同文件的两个未命名列

Question

I have two files File 1 and 2. I want to perform outer join on first column of both of them. But, the problem is that both of the files have unnamed columns.

So, is there any way I can apply outer join on unnamed columns?

Any help will be appreciated. Thanks in Advance.

File 1:

0    6    7
1    4    9
2    0    3
3    5    8

File 2:

0    7    3
1    3    9
2    6    2
3    8    0

Expected Output:

0    6    7    7    3
1    4    9    3    9
2    0    3    6    2
3    5    8    8    0

Answer 1

IIUC you want to concatenate your files horizontally:

d1 = pd.read_csv(filename1, header=None)
d2 = pd.read_csv(filename1, header=None)

pd.concat([d1, d2], axis=1).to_csv(r'/path/to/result.csv', index=False)

PS you may want to specify a correct separator sep='???' (default is sep=',' ) when calling pd.read_csv() and .to_csv()