skuzzymiglet  envy  ~  src  weechat-matrix  master  %  pip install -r requirements.txt            master
Defaulting to user installation because normal site-packages is not writeable
Ignoring typing: markers 'python_version < "3.5"' don't match your environment
Requirement already satisfied: pyOpenSSL in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 1)) (19.1.0)
Requirement already satisfied: webcolors in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 3)) (1.11.1)
Requirement already satisfied: future in /home/skuzzymiglet/.local/lib/python3.8/site-packages (from -r requirements.txt (line 4)) (0.18.2)
Requirement already satisfied: atomicwrites in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 5))
(1.3.0)
Requirement already satisfied: attrs in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 6)) (19.3.0)
Requirement already satisfied: logbook in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 7)) (1.5.3)
Requirement already satisfied: pygments in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 8)) (2.6.1)
Requirement already satisfied: matrix-nio[e2e]>=0.6 in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 9)) (0.10.0)
Requirement already satisfied: aiohttp in /usr/lib/python3.8/site-packages (from -r requirements.txt (line 10)) (3.6.2)
ERROR: Exception:
Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 186, in _main
    status = self.run(options, args)
  File "/usr/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 331, in run
    resolver.resolve(requirement_set)
  File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 281, in _get_abstract_dist_for
    req.populate_link(self.finder, upgrade_allowed, require_hashes)
  File "/usr/lib/python3.8/site-packages/pip/_internal/req/req_install.py", line 249, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/package_finder.py", line 898, in find_requirement
    best_candidate_result = self.find_best_candidate(
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/package_finder.py", line 881, in find_best_candidate
    candidates = self.find_all_candidates(project_name)
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/package_finder.py", line 825, in find_all_candidates
    package_links = self.process_project_url(
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/package_finder.py", line 790, in process_project_url
    html_page = self._link_collector.fetch_page(project_url)
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/collector.py", line 497, in fetch_page
    return _get_html_page(location, session=self.session)
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/collector.py", line 337, in _get_html_page
    resp = _get_html_response(url, session=session)
  File "/usr/lib/python3.8/site-packages/pip/_internal/index/collector.py", line 126, in _get_html_response
    resp = session.get(
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/requests/sessions.py", line 543, in get
    return self.request('GET', url, **kwargs)
  File "/usr/lib/python3.8/site-packages/pip/_internal/network/session.py", line 405, in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/requests/sessions.py", line 530, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/requests/sessions.py", line 683, in send
    r.content
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/requests/models.py", line 829, in content
    self._content = b''.join(self.iter_content(CONTENT_CHUNK_SIZE)) or b''
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/requests/models.py", line 751, in generate
    for chunk in self.raw.stream(chunk_size, decode_content=True):
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/urllib3/response.py", line 496, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "/home/skuzzymiglet/.local/lib/python3.8/site-packages/urllib3/response.py", line 444, in read
    data = self._fp.read(amt)
  File "/usr/lib/python3.8/site-packages/cachecontrol/filewrapper.py", line 65, in read
    self._close()
  File "/usr/lib/python3.8/site-packages/cachecontrol/filewrapper.py", line 52, in _close
    self.__callback(self.__buf.getvalue())
  File "/usr/lib/python3.8/site-packages/cachecontrol/controller.py", line 309, in cache_response
    cache_url, self.serializer.dumps(request, response, body=body)
  File "/usr/lib/python3.8/site-packages/cachecontrol/serialize.py", line 72, in dumps
    return b",".join([b"cc=4", msgpack.dumps(data, use_bin_type=True)])
AttributeError: module 'msgpack' has no attribute 'dumps'