something happend with requeriments

[johnfelipe]

root@machineteacheble-ubuntu-s-8vcpu-16gb-nyc1-01:~/Child-Safety-System# pip install -r requirements.txt

Collecting absl-py==0.11.0
  Using cached absl_py-0.11.0-py3-none-any.whl (127 kB)
Requirement already satisfied: altair==4.1.0 in /usr/local/lib/python3.8/dist-packages (from -r requirements.txt (line 2)) (4.1.0)
ERROR: Exception:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3103, in __init__
    super(Requirement, self).__init__(requirement_string)
  File "/usr/lib/python3/dist-packages/pkg_resources/_vendor/packaging/requirements.py", line 101, in __init__
    raise InvalidRequirement("Invalid URL given")
pkg_resources.extern.packaging.requirements.InvalidRequirement: Invalid URL given

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 186, in _main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/_internal/commands/install.py", line 357, in run
    resolver.resolve(requirement_set)
  File "/usr/lib/python3/dist-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File "/usr/lib/python3/dist-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/dist-packages/pip/_internal/legacy_resolve.py", line 270, in _get_abstract_dist_for
    skip_reason = self._check_skip_installed(req)
  File "/usr/lib/python3/dist-packages/pip/_internal/legacy_resolve.py", line 228, in _check_skip_installed
    req_to_install.check_if_exists(self.use_user_site)
  File "/usr/lib/python3/dist-packages/pip/_internal/req/req_install.py", line 443, in check_if_exists
    self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 480, in get_distribution
    dist = Requirement.parse(dist)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3150, in parse
    req, = parse_requirements(s)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3096, in parse_requirements
    yield Requirement(line)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3105, in __init__
    raise RequirementParseError(str(e))
pkg_resources.RequirementParseError: Invalid URL given