$ pwd
/home/serhiy/py/cpy�thon-3.5
$ ./python -m pydoc -w pydoc
Traceback (most recent call last):
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/pydoc.py", line 2648, in <module>
    cli()
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/pydoc.py", line 2611, in cli
    writedoc(arg)
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/pydoc.py", line 1642, in writedoc
    page = html.page(describe(object), html.document(object, name))
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/pydoc.py", line 370, in document
    if inspect.ismodule(object): return self.docmodule(*args)
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/pydoc.py", line 651, in docmodule
    url = urllib.parse.quote(path)
  File "/home/serhiy/py/cpy\udcffthon-3.5/Lib/urllib/parse.py", line 706, in quote
    string = string.encode(encoding, errors)
UnicodeEncodeError: 'utf-8' codec can't encode character '\udcff' in position 19: surrogates not allowed