Python打印不合法的文件名

def bad_filename(filename):
  return repr(filename)[1:-1]

try:
  print(filename)
except UnicodeEncodeError:
  print(bad_filename(filename))

> for name in files:
...   print(name)
...
spam.py
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
UnicodeEncodeError: 'utf-8' codec can't encode character '\udce4' in
position 1: surrogates not allowed
>

> for name in files:
... try:
...   print(name)
... except UnicodeEncodeError:
...   print(bad_filename(name))
...
spam.py
b\udce4d.txt
foo.txt
>

def bad_filename(filename):
  temp = filename.encode(sys.getfilesystemencoding(), errors='surrogateescape')
  return temp.decode('latin-1')

> for name in files:
...   try:
...     print(name)
...   except UnicodeEncodeError:
...     print(bad_filename(name))
...
spam.py
bäd.txt
foo.txt
>