Eliminado venv y www del repositorio, agrege un requirements igual

venv/lib/python3.8/site-packages/pip/_internal/distributions/base.py

@@ -2,6 +2,15 @@ import abc
 
 from pip._vendor.six import add_metaclass
 
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional
+
+    from pip._vendor.pkg_resources import Distribution
+    from pip._internal.req import InstallRequirement
+    from pip._internal.index.package_finder import PackageFinder
+
 
 @add_metaclass(abc.ABCMeta)
 class AbstractDistribution(object):
@@ -21,13 +30,16 @@ class AbstractDistribution(object):
     """
 
     def __init__(self, req):
+        # type: (InstallRequirement) -> None
         super(AbstractDistribution, self).__init__()
         self.req = req
 
     @abc.abstractmethod
     def get_pkg_resources_distribution(self):
+        # type: () -> Optional[Distribution]
         raise NotImplementedError()
 
     @abc.abstractmethod
     def prepare_distribution_metadata(self, finder, build_isolation):
+        # type: (PackageFinder, bool) -> None
         raise NotImplementedError()