Install from requirements file
Install dependencies listed in a requirements file.
bashANYrequirementsinstall
bash
python -m pip install -r requirements.txtNotes
Common project bootstrap command for development or deployment.
pip Install and Dependencies Cheat Sheet
Dependency installation patterns with pip, including constraints, editable installs, extras, local paths, VCS installs, and resolver control.
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Requirements Files
Write frozen versions to requirements.txt
Generate a pinned requirements file from the active environment.
bashANYfreezerequirementspinning
bash
python -m pip freeze > requirements.txtNotes
Produces exact installed versions for reproducible installs.
Install with constraints
Use a constraints file while installing dependencies.
bashANYconstraintsrequirementsresolver
bash
python -m pip install -r requirements.txt -c constraints.txtNotes
Constraints restrict versions without necessarily declaring top-level requirements.
Install multiple requirements files
Combine base and environment-specific requirement lists.
bashANYrequirementsdevelopmentinstall
bash
python -m pip install -r requirements.txt -r requirements-dev.txtNotes
Useful when splitting runtime and development dependencies.
Extras, Editable, and Local Installs
Install current project in editable mode
Install a local project with editable imports.
bashANYeditablelocaldevelopment
bash
python -m pip install -e .Notes
Common for local package development. Changes in source are reflected without reinstalling.
Install editable project with extras
Install a project in editable mode with optional dependency groups.
bashANYeditableextrasdevelopment
bash
python -m pip install -e ".[dev]"Notes
Great for local development setups that need test or lint dependencies.
Install package extras
Install optional extras defined by a package.
bashANYextrasoptional-dependencies
bash
python -m pip install "requests[socks]"Notes
Extras activate optional dependency sets defined by the package.
bash
python -m pip install ./my-packageNotes
Useful for local monorepo or package development workflows.
Install all wheels from a directory
Install wheel artifacts stored in a local folder.
bashANYwheellocal-file
bash
python -m pip install ./dist/*.whlNotes
Helpful when testing freshly built artifacts locally.
VCS and Direct URLs
Install from a Git repository over HTTPS
Install a package directly from a Git repo.
bashANYgitvcsdirect-url
bash
python -m pip install git+https://github.com/pallets/click.gitNotes
Good for unreleased code or internal repos exposed via Git.
Install from a specific Git ref
Pin a VCS install to a tag, branch, or commit.
bashANYgitversionsvcs
bash
python -m pip install git+https://github.com/pallets/click.git@8.1.7Notes
Pinning a ref improves reproducibility versus floating branches.
Install from a direct archive URL
Install from a remote source archive or wheel URL.
bashANYurlarchiveinstall
bash
python -m pip install https://files.pythonhosted.org/packages/.../package.whlNotes
Useful for direct artifacts and private file endpoints.
Resolver and Platform Controls
Use eager upgrade strategy
Upgrade transitive dependencies more aggressively.
bashANYupgraderesolver
bash
python -m pip install --upgrade --upgrade-strategy eager fastapiNotes
Can help bring an environment fully up to date, but may cause larger dependency changes.
Require wheels for a package
Only accept binary wheels for a named package.
bashANYbinarywheelsresolver
bash
python -m pip install --only-binary pandas pandasNotes
Useful when builds from source are slow or unavailable in CI.
Resolve for a target platform and Python
Download distributions for another platform or interpreter version.
bashANYplatformpython-versiondownload
bash
python -m pip download --platform manylinux2014_x86_64 --python-version 311 --only-binary=:all: numpyNotes
Often used when building deploy artifacts for another runtime environment.
Install into a target directory
Install packages into a custom filesystem path.
bashANYtargetvendorinstall
bash
python -m pip install --target ./vendor requestsNotes
Useful for zip apps, lambdas, or vendored packaging layouts.
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