def encode(in_file, out_file, name=None, mode=None):
    """Uuencode file"""
    #
    # If in_file is a pathname open it and change defaults
    #
    opened_files = []
    try:
        if in_file == '-':
            in_file = sys.stdin
        elif isinstance(in_file, basestring):
            if name is None:
                name = os.path.basename(in_file)
            if mode is None:
                try:
                    mode = os.stat(in_file).st_mode
                except AttributeError:
                    pass
            in_file = open(in_file, 'rb')
            opened_files.append(in_file)
        #
        # Open out_file if it is a pathname
        #
        if out_file == '-':
            out_file = sys.stdout
        elif isinstance(out_file, basestring):
            out_file = open(out_file, 'wb')
            opened_files.append(out_file)
        #
        # Set defaults for name and mode
        #
        if name is None:
            name = '-'
        if mode is None:
            mode = 0666
        #
        # Write the data
        #
        out_file.write('begin %o %s\n' % ((mode&0777),name))
        data = in_file.read(45)
        while len(data) > 0:
            out_file.write(binascii.b2a_uu(data))
            data = in_file.read(45)
        out_file.write(' \nend\n')
    finally:
        for f in opened_files:
            f.close()
Uuencode file