mirror of
https://github.com/pyenv/pyenv.git
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400 lines
11 KiB
Markdown
400 lines
11 KiB
Markdown
# Command Reference
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Like `git`, the `pyenv` command delegates to subcommands based on its
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first argument.
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The most common subcommands are:
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* [`pyenv help`](#pyenv-help)
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* [`pyenv commands`](#pyenv-commands)
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* [`pyenv local`](#pyenv-local)
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* [`pyenv global`](#pyenv-global)
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* [`pyenv shell`](#pyenv-shell)
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* [`pyenv install`](#pyenv-install)
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* [`pyenv uninstall`](#pyenv-uninstall)
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* [`pyenv rehash`](#pyenv-rehash)
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* [`pyenv version`](#pyenv-version)
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* [`pyenv versions`](#pyenv-versions)
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* [`pyenv which`](#pyenv-which)
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* [`pyenv whence`](#pyenv-whence)
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* [`pyenv exec`](#pyenv-exec)
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* [`pyenv root`](#pyenv-root)
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* [`pyenv prefix`](#pyenv-prefix)
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* [`pyenv latest`](#pyenv-latest)
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* [`pyenv hooks`](#pyenv-hooks)
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* [`pyenv shims`](#pyenv-shims)
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* [`pyenv init`](#pyenv-init)
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* [`pyenv completions`](#pyenv-completions)
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## `pyenv help`
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List all available pyenv commands along with a brief description of what they do. Run `pyenv help <command>` for information on a specific command. For full documentation, see: https://github.com/pyenv/pyenv#readme
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## `pyenv commands`
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Lists all available pyenv commands.
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## `pyenv local`
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Sets a local application-specific Python version by writing the version
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name to a `.python-version` file in the current directory. This version
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overrides the global version, and can be overridden itself by setting
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the `PYENV_VERSION` environment variable or with the `pyenv shell`
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command.
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$ pyenv local 2.7.6
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When run without a version number, `pyenv local` reports the currently
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configured local version. You can also unset the local version:
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$ pyenv local --unset
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Previous versions of pyenv stored local version specifications in a
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file named `.pyenv-version`. For backwards compatibility, pyenv will
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read a local version specified in an `.pyenv-version` file, but a
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`.python-version` file in the same directory will take precedence.
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### `pyenv local` (advanced)
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You can specify multiple versions as local Python at once.
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv local 2.7.6 3.3.3
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
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* 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv local 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
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* 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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## `pyenv global`
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Sets the global version of Python to be used in all shells by writing
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the version name to the `~/.pyenv/version` file. This version can be
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overridden by an application-specific `.python-version` file, or by
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setting the `PYENV_VERSION` environment variable.
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$ pyenv global 2.7.6
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The special version name `system` tells pyenv to use the system Python
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(detected by searching your `$PATH`).
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When run without a version number, `pyenv global` reports the
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currently configured global version.
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### `pyenv global` (advanced)
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You can specify multiple versions as global Python at once.
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv global 2.7.6 3.3.3
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/.pyenv/version)
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* 3.3.3 (set by /Users/yyuu/.pyenv/version)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv global 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/.pyenv/version)
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* 3.3.3 (set by /Users/yyuu/.pyenv/version)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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## `pyenv shell`
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Sets a shell-specific Python version by setting the `PYENV_VERSION`
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environment variable in your shell. This version overrides
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application-specific versions and the global version.
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$ pyenv shell pypy-2.2.1
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When run without a version number, `pyenv shell` reports the current
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value of `PYENV_VERSION`. You can also unset the shell version:
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$ pyenv shell --unset
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Note that you'll need pyenv's shell integration enabled (step 3 of
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the installation instructions) in order to use this command. If you
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prefer not to use shell integration, you may simply set the
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`PYENV_VERSION` variable yourself:
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$ export PYENV_VERSION=pypy-2.2.1
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### `pyenv shell` (advanced)
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You can specify multiple versions via `PYENV_VERSION` at once.
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv shell 2.7.6 3.3.3
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$ pyenv versions
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system
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* 2.7.6 (set by PYENV_VERSION environment variable)
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* 3.3.3 (set by PYENV_VERSION environment variable)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv shell 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by PYENV_VERSION environment variable)
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* 3.3.3 (set by PYENV_VERSION environment variable)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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## `pyenv install`
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Install a Python version (using [`python-build`](https://github.com/pyenv/pyenv/tree/master/plugins/python-build)).
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Usage: pyenv install [-f] [-kvp] <version>
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pyenv install [-f] [-kvp] <definition-file>
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pyenv install -l|--list
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-l/--list List all available versions
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-f/--force Install even if the version appears to be installed already
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-s/--skip-existing Skip the installation if the version appears to be installed already
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python-build options:
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-k/--keep Keep source tree in $PYENV_BUILD_ROOT after installation
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(defaults to $PYENV_ROOT/sources)
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-v/--verbose Verbose mode: print compilation status to stdout
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-p/--patch Apply a patch from stdin before building
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-g/--debug Build a debug version
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To list the all available versions of Python, including Anaconda, Jython, pypy, and stackless, use:
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$ pyenv install --list
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Then install the desired versions:
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$ pyenv install 2.7.6
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$ pyenv install 2.6.8
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$ pyenv versions
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system
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2.6.8
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* 2.7.6 (set by /home/yyuu/.pyenv/version)
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You can also install the latest version of Python in a specific version line by supplying a prefix instead of a complete name:
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$ pyenv install 3.10
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See the [`pyenv latest` documentation](#pyenv-latest) for details on prefix resolution.
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An older option is to use the `:latest` syntax. For example, to install the latest patch version for Python 3.8 you could do:
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pyenv install 3.8:latest
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To install the latest major release for Python 3 try:
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pyenv install 3:latest
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## `pyenv uninstall`
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Uninstall Python versions.
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Usage: pyenv uninstall [-f|--force] <version> ...
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-f Attempt to remove the specified version without prompting
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for confirmation. If the version does not exist, do not
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display an error message.
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## `pyenv rehash`
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Installs shims for all Python binaries known to pyenv (i.e.,
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`~/.pyenv/versions/*/bin/*`). Run this command after you install a new
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version of Python, or install a package that provides binaries.
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$ pyenv rehash
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## `pyenv version`
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Displays the currently active Python version, along with information on
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how it was set.
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$ pyenv version
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2.7.6 (set by /home/yyuu/.pyenv/version)
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## `pyenv versions`
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Lists all Python versions known to pyenv, and shows an asterisk next to
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the currently active version.
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$ pyenv versions
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2.5.6
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2.6.8
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* 2.7.6 (set by /home/yyuu/.pyenv/version)
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3.3.3
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jython-2.5.3
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pypy-2.2.1
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## `pyenv which`
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Displays the full path to the executable that pyenv will invoke when
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you run the given command.
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$ pyenv which python3.3
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/home/yyuu/.pyenv/versions/3.3.3/bin/python3.3
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Use --nosystem argument in case when you don't need to search command in the
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system environment.
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## `pyenv whence`
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Lists all Python versions with the given command installed.
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$ pyenv whence 2to3
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2.6.8
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2.7.6
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3.3.3
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## `pyenv exec`
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Usage: pyenv exec <command> [arg1 arg2...]
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Runs an executable by first preparing PATH so that the selected Python
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version's `bin` directory is at the front.
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For example, if the currently selected Python version is 3.9.7:
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pyenv exec pip install -r requirements.txt
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is equivalent to:
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PATH="$PYENV_ROOT/versions/3.9.7/bin:$PATH" pip install -r requirements.txt
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## `pyenv root`
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Displays the root directory where versions and shims are kept.
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$ pyenv root
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/home/user/.pyenv
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## `pyenv prefix`
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Displays the directories where the given Python versions are installed,
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separated by colons. If no version is given, `pyenv prefix` displays the
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locations of the currently selected versions.
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$ pyenv prefix 3.9.7
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/home/user/.pyenv/versions/3.9.7
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## `pyenv latest`
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Displays the latest installed or known version with the given prefix
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Usage: pyenv latest [-k|--known] [-q|--quiet] <prefix>
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-k/--known Select from all known versions instead of installed
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-q/--quiet Do not print an error message on resolution failure
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Only full prefixes are searched: in the actual name, the given prefix must be followed by a dot or a dash.
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Prereleases and versions with specific suffixes (e.g. `-src`) are ignored.
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## `pyenv hooks`
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Lists installed hook scripts for a given pyenv command.
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Usage: pyenv hooks <command>
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## `pyenv shims`
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List existing pyenv shims.
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Usage: pyenv shims [--short]
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$ pyenv shims
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/home/user/.pyenv/shims/2to3
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/home/user/.pyenv/shims/2to3-3.9
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/home/user/.pyenv/shims/idle
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/home/user/.pyenv/shims/idle3
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/home/user/.pyenv/shims/idle3.9
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/home/user/.pyenv/shims/pip
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/home/user/.pyenv/shims/pip3
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/home/user/.pyenv/shims/pip3.9
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/home/user/.pyenv/shims/pydoc
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/home/user/.pyenv/shims/pydoc3
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/home/user/.pyenv/shims/pydoc3.9
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/home/user/.pyenv/shims/python
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/home/user/.pyenv/shims/python3
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/home/user/.pyenv/shims/python3.9
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/home/user/.pyenv/shims/python3.9-config
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/home/user/.pyenv/shims/python3.9-gdb.py
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/home/user/.pyenv/shims/python3-config
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/home/user/.pyenv/shims/python-config
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## `pyenv init`
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Configure the shell environment for pyenv
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Usage: eval "$(pyenv init [-|--path] [--no-rehash] [<shell>])"
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- Initialize shims directory, print PYENV_SHELL variable, completions path
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and shell function
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--path Print shims path
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--no-rehash Add no rehash command to output
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## `pyenv completions`
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Lists available completions for a given pyenv command.
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Usage: pyenv completions <command> [arg1 arg2...]
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