写入python中的上一行

Question

I am writing code to generate words from one file to another I have done all ok but the problem that when I use line it feed a new line in the output file I want to next word after line to be written at the same line

the code

with open("test.txt") as f:
    with open("out.txt", "w") as f1:
        for line in f:
            f1.write("<answer>" + line +"doit");        

now doit comes in a new line in the out.txt

the text file has 3 lines door window house

Answer 1

The problem is that your variable line contains a \\n at the end, which you have to remove yourself:

with open("test.txt") as f:
    with open("out.txt", "w") as f1:
        for line in f:
            f1.write("<answer>" + line[:-1] +"doit")

The problem of using rstrip as the other answer suggests is that you would lose ending spaces: ' aa \\n'.rstrip() gives you ' aa' . This might or might not be what you need.

Answer 2

Use rstrip() to remove the trailing \\n

with open("test.txt") as f:
    with open("out.txt", "w") as f1:
        for line in f:
            f1.write("<answer>" + line.rstrip('\n') +"doit");