Chinese encodeing problem one shot

ch_encoding_one_shot.py

#!/usr/bin/env python3
#encoding:utf8

# NOTE: only sovle problems with text file that has been aready encoded into utf8
# NOTE: may lead to wrong result if the file contains nothing corrupted

import sys

way1 = lambda s: s.encode('latin1').decode('gbk')
way2 = lambda s: s.encode('gbk').decode('utf8').encode('latin1').decode('gbk')


for fname in sys.argv[1:]:
  with open(fname) as file:
    data = file.read()
    s_save = ''
    try:
      s_save = way1(data)
    except UnicodeError:
      try:
        s_save = way2(data)
      except UnicodeError:
        pass
    if s_save:
      open(fname+'.tryrecover.txt','wb').write(s_save.encode())