pip using proxy even without being asked to

Question

So I operate my pc on a college based network using a proxy server. So for using pip I tried a lot of things to implement the proxy tunneling for pypip as well. But I kept getting the same kind of error,so I tried removing the proxy, connecting to a non college wifi and trying it again. But somehow it's stuck on using the same proxy address again and again, even though i've turned off the proxy in windows proxy settings.

Exception:
Traceback (most recent call last):
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\cli\base_command.py", l
ine 179, in main
    status = self.run(options, args)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\commands\install.py", l
ine 315, in run
    resolver.resolve(requirement_set)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\resolve.py", line 131,
in resolve
    self._resolve_one(requirement_set, req)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\resolve.py", line 294,
in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\resolve.py", line 242,
in _get_abstract_dist_for
    self.require_hashes
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\operations\prepare.py",
 line 269, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\req\req_install.py", li
ne 196, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\index.py", line 639, in
 find_requirement
    all_candidates = self.find_all_candidates(req.name)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\index.py", line 610, in
 find_all_candidates
    for page in self._get_pages(url_locations, project_name):
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\index.py", line 743, in
 _get_pages
    page = _get_html_page(location, session=self.session)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\index.py", line 229, in
 _get_html_page
    resp = _get_html_response(url, session=session)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\index.py", line 177, in
 _get_html_response
    "Cache-Control": "max-age=0",
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\sessions.py", li
ne 546, in get
    return self.request('GET', url, **kwargs)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_internal\download.py", line 403,
 in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\sessions.py", li
ne 533, in request
    resp = self.send(prep, **send_kwargs)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\sessions.py", li
ne 646, in send
    r = adapter.send(request, **kwargs)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\cachecontrol\adapter.py",
 line 53, in send
    resp = super(CacheControlAdapter, self).send(request, **kw)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\adapters.py", li
ne 412, in send
    conn = self.get_connection(request.url, proxies)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\adapters.py", li
ne 309, in get_connection
    proxy_manager = self.proxy_manager_for(proxy)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\requests\adapters.py", li
ne 199, in proxy_manager_for
    **proxy_kwargs)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\urllib3\poolmanager.py",
line 450, in proxy_from_url
    return ProxyManager(proxy_url=url, **kw)
  File "c:\users\deepa\appdata\local\programs\python\python37-32\lib\site-packages\pip\_vendor\urllib3\poolmanager.py",
line 401, in __init__
    raise ProxySchemeUnknown(proxy.scheme)
pip._vendor.urllib3.exceptions.ProxySchemeUnknown: Not supported proxy scheme adityaga