Exception:
Traceback (most recent call last):
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\basecommand.py", line 228, in main
    status = self.run(options, args)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\commands\install.py", line 291, in run
    resolver.resolve(requirement_set)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\resolve.py", line 103, in resolve
    self._resolve_one(requirement_set, req)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\resolve.py", line 257, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\resolve.py", line 210, in _get_abstract_dist_for
    self.require_hashes
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\operations\prepare.py", line 245, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\req\req_install.py", line 307, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\index.py", line 484, in find_requirement
    all_candidates = self.find_all_candidates(req.name)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\index.py", line 442, in find_all_candidates
    for page in self._get_pages(url_locations, project_name):
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\index.py", line 587, in _get_pages
    page = self._get_page(location)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\index.py", line 705, in _get_page
    return HTMLPage.get_page(link, session=self.session)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\index.py", line 814, in get_page
    "Cache-Control": "max-age=600",
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\sessions.py", line 521, in get
    return self.request('GET', url, **kwargs)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_internal\download.py", line 397, in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\sessions.py", line 499, in request
    prep.url, proxies, stream, verify, cert
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\sessions.py", line 672, in merge_environment_settings
    env_proxies = get_environ_proxies(url, no_proxy=no_proxy)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\utils.py", line 692, in get_environ_proxies
    if should_bypass_proxies(url, no_proxy=no_proxy):
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\utils.py", line 676, in should_bypass_proxies
    bypass = proxy_bypass(netloc)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\utils.py", line 87, in proxy_bypass
    return proxy_bypass_registry(host)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\site-packages\pip\_vendor\requests\utils.py", line 74, in proxy_bypass_registry
    if re.match(test, host, re.I):
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\re.py", line 173, in match
    return _compile(pattern, flags).match(string)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\re.py", line 286, in _compile
    p = sre_compile.compile(pattern, flags)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\sre_compile.py", line 764, in compile
    p = sre_parse.parse(p, flags)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\sre_parse.py", line 930, in parse
    p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0)
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\sre_parse.py", line 426, in _parse_sub
    not nested and not items))
  File "c:\users\"name"\appdata\local\programs\python\python37\lib\sre_parse.py", line 819, in _parse
    source.tell() - start)
re.error: missing ), unterminated subpattern at position 0