gistfile1.sc

import stat

def chmodize(st_mode):
    """Return the string representation of some file's permissions
    matching the ``st_mode`` integer value
    """
    st_mode = int(st_mode)
    # first
    if   stat.S_ISREG(st_mode):  x = '-'
    elif stat.S_ISDIR(st_mode):  x = 'd'
    elif stat.S_ISLNK(st_mode):  x = 'l'
    elif stat.S_ISBLK(st_mode):  x = 'b'
    elif stat.S_ISCHR(st_mode):  x = 'c'
    elif stat.S_ISFIFO(st_mode): x = 'p'
    elif stat.S_ISSOCK(st_mode): x = 's'
    # second & third
    x +=(stat.S_IRUSR & st_mode and 'r' or '-') +\
        (stat.S_IWUSR & st_mode and 'w' or '-')
    # fourth
    if    stat.S_ISUID & st_mode:  x += 's'
    elif  stat.S_IXUSR & st_mode:  x += 'x'
    else:                          x += '-'
    # fifth & sixth
    x +=(st_mode & stat.S_IRGRP and 'r' or '-') +\
        (st_mode & stat.S_IWGRP and 'w' or '-')
    # seventh
    if    stat.S_ISGID & st_mode:  x += 's'
    elif  stat.S_IXGRP & st_mode:  x += 'x'
    else:                          x += '-'
    # eigth, nineth & tenth
    x +=(st_mode & stat.S_IROTH and 'r' or '-') +\
        (st_mode & stat.S_IWOTH and 'w' or '-') +\
        (st_mode & stat.S_IXOTH and 'x' or '-')
    return x