code: def from_int(cls, i):
          
          i &= FULL_PERMS
          key = ('', 'x', 'w', 'xw', 'r', 'rx', 'rw', 'rwx')
          parts = []
          while i:
              parts.append(key[i & _SINGLE_FULL_PERM])
              i >>= 3
          parts.reverse()
          return cls(*parts)
docs: Create a :class:`FilePerms` object from an integer.
  
          >>> FilePerms.from_int(0o644)  # note the leading zero-oh for octal
          FilePerms(user='rw', group='r', other='r')