.. _installation:

==============
 Installation
==============

``sqlite-utils`` is tested on Linux, macOS and Windows.

.. _installation_homebrew:

Using Homebrew
==============

The :ref:`sqlite-utils command-line tool <cli>` can be installed on macOS using Homebrew::

    brew install sqlite-utils

If you have it installed and want to upgrade to the most recent release, you can run::

    brew upgrade sqlite-utils

Then run ``sqlite-utils --version`` to confirm the installed version.

.. _installation_pip:

Using pip
=========

The `sqlite-utils package <https://pypi.org/project/sqlite-utils/>`__ on PyPI includes both the :ref:`sqlite_utils Python library <python_api>` and the ``sqlite-utils`` command-line tool. You can install them using ``pip`` like so::

    pip install sqlite-utils

.. _installation_pipx:

Using pipx
==========

`pipx <https://pypi.org/project/pipx/>`__ is a tool for installing Python command-line applications in their own isolated environments. You can use ``pipx`` to install the ``sqlite-utils`` command-line tool like this::

    pipx install sqlite-utils

.. _installation_sqlite3_alternatives:

Alternatives to sqlite3
=======================

By default, ``sqlite-utils`` uses the ``sqlite3`` package bundled with the Python standard library.

Depending on your operating system, this may come with some limitations.

On some platforms the ability to load additional extensions (via ``conn.load_extension(...)`` or ``--load-extension=/path/to/extension``) may be disabled.

You may also see the error ``sqlite3.OperationalError: table sqlite_master may not be modified`` when trying to alter an existing table.

You can work around these limitations by installing the `pysqlite3 <https://pypi.org/project/pysqlite3/>`__ package, which provides a drop-in replacement for the standard library ``sqlite3`` module but with a recent version of SQLite and full support for loading extensions.

To install ``pysqlite3`` run the following:

.. code-block:: bash

    sqlite-utils install pysqlite3

``pysqlite3`` does not provide an implementation of the ``.iterdump()`` method. To use that method (see :ref:`python_api_itedump`) or the ``sqlite-utils dump`` command you should also install the ``sqlite-dump`` package:

.. code-block:: bash

    sqlite-utils install sqlite-dump

.. _installation_completion:

Setting up shell completion
===========================

You can configure shell tab completion for the ``sqlite-utils`` command using these commands.

For ``bash``:

.. code-block:: bash

    eval "$(_SQLITE_UTILS_COMPLETE=bash_source sqlite-utils)"

For ``zsh``:

.. code-block:: zsh

    eval "$(_SQLITE_UTILS_COMPLETE=zsh_source sqlite-utils)"

Add this code to ``~/.zshrc`` or ``~/.bashrc`` to automatically run it when you start a new shell.

See `the Click documentation <https://click.palletsprojects.com/en/8.1.x/shell-completion/>`__ for more details.
