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

If the files are not gigantic:

with open('newfile.txt','wb') as newf:
    for filename in list_of_files:
        with open(filename,'rb') as hf:
            newf.write(hf.read())
            # newf.write('\n\n\n')   if you want to introduce
            # some blank lines between the contents of the copied files

If the files are too big to be entirely read and held in RAM, the algorithm must be a little different to read each file to be copied in a loop by chunks of fixed length, using read(10000) for example.