python env 使用

shell
python3 -m venv ./venv/
.\venv\Scripts\Activate.ps1
pip install pipreqs
pipreqs --encoding=utf-8 --force
pip install -r requirements.txt

Installing Packages

--use-pep517

shell
python -m pip install --use-pep517 SomePackage            # latest version
python -m pip install SomePackage==1.0.4     # specific version
python -m pip install 'SomePackage>=1.0.4'   # minimum version

python -m pip install [options] <requirement specifier> [package-index-options] ...
python -m pip install [options] -r <requirements file> [package-index-options] ...
python -m pip install [options] [-e] <vcs project url> ...
python -m pip install [options] [-e] <local project path> ...
python -m pip install [options] <archive url/path> ...

Requirements Files

shell
python -m pip freeze > requirements.txt
python -m pip install -r requirements.txt

Constraints Files

Constraints files are requirements files that only control which version of a requirement is installed, not whether it is installed or not.

shell
python -m pip install -c constraints.txt

Installing from Wheels

shell
python -m pip install SomePackage-1.0-py2.py3-none-any.whl

To include optional dependencies provided in the provides_extras metadata in the wheel, you must add quotes around the install target name:

shell
python -m pip install './somepackage-1.0-py2.py3-none-any.whl[my-extras]'

pip list

shell
pip list
pip list --outdated
pip list show sphinx

pip search

shell
python -m pip search "query"

Installing from local packages

shell
python -m pip download --destination-directory DIR -r requirements.txt

python -m pip wheel --wheel-dir DIR -r requirements.txt

python -m pip install --no-index --find-links=DIR -r requirements.txt