pip3 install --help

pip3 install --help

Usage:
  pip3 install [options] <requirement specifier> [package-index-options] ...
  pip3 install [options] -r <requirements file> [package-index-options] ...
  pip3 install [options] [-e] <vcs project url> ...
  pip3 install [options] [-e] <local project path> ...
  pip3 install [options] <archive url/path> ...

Description:
  Install packages from:

  - PyPI (and other indexes) using requirement specifiers.
  - VCS project urls.
  - Local project directories.
  - Local or remote source archives.

  pip also supports installing from "requirements files", which provide
  an easy way to specify a whole environment to be installed. 

Install Options:
  -r, --requirement <file>    Install from the given requirements file. This option can be used multiple times.
  -c, --constraint <file>     Constrain versions using the given constraints file. This option can be used multiple times.
  --no-deps                   Don't install package dependencies.
  --pre                       Include pre-release and development versions. By default, pip only finds stable versions.
  -e, --editable <path/url>   Install a project in editable mode (i.e. setuptools "develop mode") from a local project path or a VCS url.
  -t, --target <dir>          Install packages into <dir>. By default this will not replace existing files/folders in <dir>. Use --upgrade to replace existing packages in <dir> with new versions.
  --platform <platform>       Only use wheels compatible with <platform>. Defaults to the platform of the running system.
  --python-version <python_version>
                             The Python interpreter version to use for wheel and "Requires-Python" compatibility checks. Defaults to a version derived from the running interpreter. The version can be
                             specified using up to three dot-separated integers (e.g. "3" for 3.0.0, "3.7" for 3.7.0, or "3.7.3"). A major-minor version can also be given as a string without dots (e.g.
                             "37" for 3.7.0).

  --implementation <implementation>
                              Only use wheels compatible with Python implementation <implementation>, e.g. 'pp', 'jy', 'cp',  or 'ip'. If not specified, then the current interpreter implementation is
                              used.  Use 'py' to force implementation-agnostic wheels.
  --abi <abi>                 Only use wheels compatible with Python abi <abi>, e.g. 'pypy_41'.  If not specified, then the current interpreter abi tag is used.  Generally you will need to specify
                              --implementation, --platform, and --python-version when using this option.
  --user                      Install to the Python user install directory for your platform. Typically ~/.local/, or %APPDATA%\Python on Windows. (See the Python documentation for site.USER_BASE for
                              full details.)
  --root <dir>                Install everything relative to this alternate root directory.
  --prefix <dir>              Installation prefix where lib, bin and other top-level folders are placed
  -b, --build <dir>           (DEPRECATED) Directory to unpack packages into and build in. Note that an initial build still takes place in a temporary directory. The location of temporary directories
                              can be controlled by setting the TMPDIR environment variable (TEMP on Windows) appropriately. When passed, build directories are not cleaned in case of failures.
  --src <dir>                 Directory to check out editable projects into. The default in a virtualenv is "<venv path>/src". The default for global installs is "<current dir>/src".
  -U, --upgrade               Upgrade all specified packages to the newest available version. The handling of dependencies depends on the upgrade-strategy used.
  --upgrade-strategy <upgrade_strategy>
                              Determines how dependency upgrading should be handled [default: only-if-needed]. "eager" - dependencies are upgraded regardless of whether the currently installed version
                              satisfies the requirements of the upgraded package(s). "only-if-needed" -  are upgraded only when they do not satisfy the requirements of the upgraded package(s).
  --force-reinstall           Reinstall all packages even if they are already up-to-date.
  -I, --ignore-installed      Ignore the installed packages, overwriting them. This can break your system if the existing package is of a different version or was installed with a different package
                              manager!
  --ignore-requires-python    Ignore the Requires-Python information.
  --no-build-isolation        Disable isolation when building a modern source distribution. Build dependencies specified by PEP 518 must be already installed if this option is used.
  --use-pep517                Use PEP 517 for building source distributions (use --no-use-pep517 to force legacy behaviour).
  --install-option <options>  Extra arguments to be supplied to the setup.py install command (use like --install-option="--install-scripts=/usr/local/bin"). Use multiple --install-option options to pass
                              multiple options to setup.py install. If you are using an option with a directory path, be sure to use absolute path.
  --global-option <options>   Extra global options to be supplied to the setup.py call before the install command.
  --compile                   Compile Python source files to bytecode
  --no-compile                Do not compile Python source files to bytecode
  --no-warn-script-location   Do not warn when installing scripts outside PATH
  --no-warn-conflicts         Do not warn about broken dependencies
  --no-binary <format_control>
                              Do not use binary packages. Can be supplied multiple times, and each time adds to the existing value. Accepts either ":all:" to disable all binary packages, ":none:" to
                              empty the set (notice the colons), or one or more package names with commas between them (no colons). Note that some packages are tricky to compile and may fail to install
                              when this option is used on them.
  --only-binary <format_control>
                              Do not use source packages. Can be supplied multiple times, and each time adds to the existing value. Accepts either ":all:" to disable all source packages, ":none:" to
                              empty the set, or one or more package names with commas between them. Packages without binary distributions will fail to install when this option is used on them.
  --prefer-binary             Prefer older binary packages over newer source packages.
  --require-hashes            Require a hash to check each requirement against, for repeatable installs. This option is implied when any package in a requirements file has a --hash option.
  --progress-bar <progress_bar>
                              Specify type of progress to be displayed [off|on|ascii|pretty|emoji] (default: on)
  --no-clean                  Don't clean up build directories.

Package Index Options:
  -i, --index-url <url>       Base URL of the Python Package Index (default https://pypi.org/simple). This should point to a repository compliant with PEP 503 (the simple repository API) or a local
                              directory laid out in the same format.
  --extra-index-url <url>     Extra URLs of package indexes to use in addition to --index-url. Should follow the same rules as --index-url.
  --no-index                  Ignore package index (only looking at --find-links URLs instead).
  -f, --find-links <url>      If a URL or path to an html file, then parse for links to archives such as sdist (.tar.gz) or wheel (.whl) files. If a local path or file:// URL that's a directory,  then
                              look for archives in the directory listing. Links to VCS project URLs are not supported.

General Options:
  -h, --help                  Show help.
  --isolated                  Run pip in an isolated mode, ignoring environment variables and user configuration.
  -v, --verbose               Give more output. Option is additive, and can be used up to 3 times.
  -V, --version               Show version and exit.
  -q, --quiet                 Give less output. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL logging levels).
  --log <path>                Path to a verbose appending log.
  --no-input                  Disable prompting for input.
  --proxy <proxy>             Specify a proxy in the form [user:passwd@]proxy.server:port.
  --retries <retries>         Maximum number of retries each connection should attempt (default 5 times).
  --timeout <sec>             Set the socket timeout (default 15 seconds).
  --exists-action <action>    Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
  --trusted-host <hostname>   Mark this host or host:port pair as trusted, even though it does not have valid or any HTTPS.
  --cert <path>               Path to alternate CA bundle.
  --client-cert <path>        Path to SSL client certificate, a single file containing the private key and the certificate in PEM format.
  --cache-dir <dir>           Store the cache data in <dir>.
  --no-cache-dir              Disable the cache.
  --disable-pip-version-check
                              Don't periodically check PyPI to determine whether a new version of pip is available for download. Implied with --no-index.
  --no-color                  Suppress colored output
  --no-python-version-warning
                              Silence deprecation warnings for upcoming unsupported Pythons.
  --use-feature <feature>     Enable new functionality, that may be backward incompatible.
  --use-deprecated <feature>  Enable deprecated functionality, that will be removed in the future.

See also

• PIP: [pipx, pip, pip3 | install | install --upgrade | list | show | uninstall | search | install cryptography | --version | help, PIP changelog, pipdeptree, install -r requirements.txt]