This Vim plugin provides a simple way to activate and deactivate Python virtual environments created by the virtualenv or venv or similar tools from a Vim session as well as synchronizes the Vim internal Python sys.path variable with an already active virtual environment.

By default, :python3 command has access only to the system-wide Python environment. vim-virtualenv changes the Vim internal Python sys.path and environment $PATH and $PYTHONPATH variables so that they refer to the chosen virtual environment, i.e. activates it.

However, :python3 command will be still tied to the Python 3 version that Vim was compiled against.

• Activate, deactivate and list virtualenvs from a Vim session. By default, vim-virtualenv works with virtualenvs located inside g:virtualenv#directory to avoid unnecessary typing.

• When a Vim session is started inside an active virtualenv, vim-virtualenv synchronizes the Vim internal Python sys.path variable with the currently active virtualenv.

• Activate virtualenvs by path using VirtualEnvActivate command. Paths can be absolute or relative, in the latter case they are first expanded against g:virtualenv#directory and then against the current directory.

• Use <Tab> completion with VirtualEnvActivate and VirtualEnvList commands to avoid typing even more.

• Change the current directory to the directory of the currently active virtualenv using VirtualEnvCD command. By default, vim-virtualenv automatically does this on virtualenv activation and returns back on deactivation.

• This plugin is not a replacement for virtualenv tool nor it aims to be one.

List virtualenvs located inside g:virtualenv#directory:

:VirtualEnvList 

List virtualenvs located inside the '/foo/bar' directory:

:VirtualEnvList /foo/bar 

Activate the 'foo' virtualenv located inside g:virtualenv#directory:

:VirtualEnvActivate foo 

Activate the virtualenv located at '/foo/bar/baz':

:VirtualEnvActivate /foo/bar/baz 

Both VirtualEnvActivate and VirtualEnvList commands support <Tab> completion.

Change the current directory to the currently active virtualenv directory:

:VirtualEnvCD 

Deactivate the currently active virtualenv:

:VirtualEnvDeactivate 

For a more detailed help see:

:help virtualenv 

Check out the feature support matrix on wiki.