PS C:\Users\damia> cd .\pypa\
PS C:\Users\damia\pypa> git clone https://github.com/pypa/pip
Cloning into 'pip'...
remote: Enumerating objects: 77605, done.
remote: Counting objects: 100% (2268/2268), done.
remote: Compressing objects: 100% (952/952), done.
remote: Total 77605 (delta 1315), reused 1956 (delta 1140), pack-reused 75337
Receiving objects: 100% (77605/77605), 62.20 MiB | 6.92 MiB/s, done.
Resolving deltas: 100% (51619/51619), done.
PS C:\Users\damia\pypa> cd pip
PS C:\Users\damia\pypa\pip> py -m venv venv
PS C:\Users\damia\pypa\pip> venv\Scripts\activate
(venv) PS C:\Users\damia\pypa\pip> py -m pip install -e .
Obtaining file:///C:/Users/damia/pypa/pip
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 21.2.3
    Uninstalling pip-21.2.3:
      Successfully uninstalled pip-21.2.3
  Running setup.py develop for pip
Successfully installed pip-21.3.dev0
(venv) PS C:\Users\damia\pypa\pip> py -m pip --version
pip 21.3.dev0 from c:\users\damia\pypa\pip\src\pip (python 3.9)
(venv) PS C:\Users\damia\pypa\pip> py -m pip install tox
Collecting tox
  Using cached tox-3.24.3-py2.py3-none-any.whl (85 kB)
Collecting pluggy>=0.12.0
  Using cached pluggy-1.0.0-py2.py3-none-any.whl (13 kB)
Collecting py>=1.4.17
  Using cached py-1.10.0-py2.py3-none-any.whl (97 kB)
Collecting six>=1.14.0
  Using cached six-1.16.0-py2.py3-none-any.whl (11 kB)
Collecting colorama>=0.4.1
  Using cached colorama-0.4.4-py2.py3-none-any.whl (16 kB)
Collecting filelock>=3.0.0
  Using cached filelock-3.0.12-py3-none-any.whl (7.6 kB)
Collecting packaging>=14
  Using cached packaging-21.0-py3-none-any.whl (40 kB)
Collecting virtualenv!=20.0.0,!=20.0.1,!=20.0.2,!=20.0.3,!=20.0.4,!=20.0.5,!=20.0.6,!=20.0.7,>=16.0.0
  Using cached virtualenv-20.7.2-py2.py3-none-any.whl (5.3 MB)
Collecting toml>=0.9.4
  Using cached toml-0.10.2-py2.py3-none-any.whl (16 kB)
Collecting pyparsing>=2.0.2
  Using cached pyparsing-2.4.7-py2.py3-none-any.whl (67 kB)
Collecting platformdirs<3,>=2
  Using cached platformdirs-2.3.0-py3-none-any.whl (13 kB)
Collecting distlib<1,>=0.3.1
  Using cached distlib-0.3.2-py2.py3-none-any.whl (338 kB)
Collecting backports.entry-points-selectable>=1.0.4
  Using cached backports.entry_points_selectable-1.1.0-py2.py3-none-any.whl (6.2 kB)
Installing collected packages: six, pyparsing, platformdirs, filelock, distlib, backports.entry-points-selectable, virtualenv, toml, py, pluggy, packaging, colorama, tox
Successfully installed backports.entry-points-selectable-1.1.0 colorama-0.4.4 distlib-0.3.2 filelock-3.0.12 packaging-21.0 platformdirs-2.3.0 pluggy-1.0.0 py-1.10.0 pyparsing-2.4.7 six-1.16.0 toml-0.10.2 tox-3.24.3 virtualenv-20.7.2
(venv) PS C:\Users\damia\pypa\pip>