Python concatenate text files

Question

I have a list of 20 file names, like [\'file1.txt\', \'file2.txt\', ...]. I want to write a Python script to concatenate these files into a new file. I could op

Answer 1

What's wrong with UNIX commands ? (given you're not working on Windows) :

ls | xargs cat | tee output.txt does the job ( you can call it from python with subprocess if you want)