On 2005-04-05, could ildg <[EMAIL PROTECTED]> wrote: >> > I want to merge file A and file B into a new file C, All of >> > them are binary. >> >> file('C','wb').write(file('A','rb').read()+file('B','rb').read()) > > Python is really magic, even merge file can use "+".
You probably shouldn't use the above code for very large files, since it reads files A and B entirely into memory before writing the combined data to C. For large files, something like this is probably a better idea: fout = file('C','wb') for n in ['A','B']: fin = file(n,'rb') while True: data = fin.read(65536) if not data: break fout.write(data) fin.close() fout.close() -- Grant Edwards grante Yow! I feel like a wet at parking meter on Darvon! visi.com -- http://mail.python.org/mailman/listinfo/python-list