Find package

py -m pip freeze | findstr py

Upgrade Pip

python -m pip install --upgrade pip --trusted-host pypi.org --trusted-host files.pythonhosted.org
py -m pip install --upgrade pip --trusted-host pypi.org --trusted-host files.pythonhosted.org
C:\Users\xxx\AppData\Local\Programs\Python\Python38\python.exe -m pip install --upgrade pip --trusted-host pypi.org --trusted-host files.pythonhosted.org

Install Pip

py get-pip.py --trusted-host pypi.org --trusted-host files.pythonhosted.org

Pip Install command

pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org <package> --user
py -m pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org <package> --user

some notes on new setup

python -m pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org <package> --user

install from whl

pip install some-package.whl

Add to path

C:\Users\xxx\AppData\Roaming\Python\Python37\Scripts

Use this to install from local drive

pip install ./downloads/PythonSetup3.8/flake8-3.8.3.tar.gz  --trusted-host pypi.org --trusted-host files.pythonhosted.org
py -m pip install ./downloads/PythonSetup3.8/dateformat-0.9.7.tar.gz --trusted-host pypi.org --trusted-host files.pythonhosted.org --user

Install requirement

pip install -r requirements.txt --trusted-host pypi.org --trusted-host files.pythonhosted.org
python -m pip install -r requirements.txt --trusted-host pypi.org --trusted-host files.pythonhosted.org

When upgrading, reinstall all packages even if they are already up-to-date.

pip install --upgrade --force-reinstall <package> --trusted-host pypi.org --trusted-host files.pythonhosted.org
pip install --upgrade --force-reinstall --trusted-host pypi.org --trusted-host files.pythonhosted.org <package>

pip install -I <package>
pip install --ignore-installed <package>

Once in a while, a Python package gets corrupted on your machine and you need to force pip to reinstall it. As of pip 10.0, you can run the following:

This will force pip to re-install and all its dependencies.

pip install --force-reinstall <corrupted package>

If you want to re-download the packages instead of using the files from your pip cache, add the --no-cache-dir flag:

pip install --force-reinstall --no-cache-dir <corrupted package>

If you want to upgrade the package, you can run this instead:

pip install --upgrade <corrupted package>

The --upgrade flag will not mess with the dependencies of unless you add the --force-reinstall flag.

If, for some reason, you want to re-install and all its dependencies without first removing the current versions, you can run:

pip install --ignore-installed <corrupted package>

By the way, if you’re using a pip version that is less than 10.0, it’s time to update pip:

pip install --upgrade pip