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https://github.com/dahlia/iterfzf

Pythonic interface to fzf, a CLI fuzzy finder
https://github.com/dahlia/iterfzf

cli fuzzy-search fzf python python2 python3

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Pythonic interface to fzf, a CLI fuzzy finder

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``iterfzf``: Pythonic interface to ``fzf``
==========================================

.. image:: https://img.shields.io/pypi/v/iterfzf
:target: https://pypi.org/project/iterfzf/
:alt: Latest PyPI version

.. image:: https://github.com/dahlia/iterfzf/actions/workflows/test.yaml/badge.svg
:alt: Build status (GitHub Actions)
:target: https://github.com/dahlia/iterfzf/actions/workflows/test.yaml

Demo session
------------

.. image:: https://asciinema.org/a/121028.png
:target: https://asciinema.org/a/121028
:alt: iterfzf demo session

See also the `API reference`_.

Key features
------------

- No dependency but only Python is required. Prebuilt ``fzf`` binary for
each platform is bundled into wheels. Everything is ready by
``pip install iterfzf``. (Note that not wheels of all supported platforms
are uploaded to PyPI as they don't allow minor platforms e.g. FreeBSD.
The complete wheels can be found from the `GitHub releases`__.)
- Consumes an iterable rather than a list. It makes UX way better when the
input data is long but *streamed* from low latency network.
It can begin to display items immediately after only *part* of items are
ready, and *before* the complete items are ready.
- Supports Python 3.8 or higher.

__ https://github.com/dahlia/iterfzf/releases

.. _api reference:

``iterfzf.iterfzf(iterable, *, **options)``
-------------------------------------------

Consumes the given ``iterable`` of strings, and displays them using ``fzf``.
If a user chooses something it immediately returns the chosen things.

The following is the full list of parameters. Pass them as
**keyword arguments** except for ``iterable`` which comes first:

``iterable`` (required)
The only required parameter. Every element which this ``iterable`` yields
is displayed immediately after each one is produced. In other words,
the passed ``iterable`` is lazily consumed.

It can be an iterable of byte strings (e.g. ``[b'foo', b'bar']``) or of
Unicode strings (e.g. ``[u'foo', u'bar']``), but must not be
mixed (e.g. ``[u'foo', b'bar']``). If they are byte strings the function
returns bytes. If they are Unicode strings it returns Unicode strings.
See also the ``encoding`` parameter.

``sort``
Sorts the result if ``True``. ``False`` by default.

``multi``
``True`` to let the user to choose more than one. A user can select
items with tab/shift-tab. If ``multi=True`` the function returns a list of
strings rather than a string.

``False`` to make a user possible to choose only one. If ``multi=False``
it returns a string rather than a list.

For both modes, the function returns ``None`` if nothing is matched or
a user cancelled.

``False`` by default.

Corresponds to ``-m``/``--multi`` option.

``bind``
The key/event bindings to pass to ``fzf``.

Dictionary of the form {KEY: ACTION} or {EVENT: ACTION}.

Corresponds to ``--bind=KEYBINDS`` option.

``print_query``
If ``True`` the return type is a tuple where the first element is the query
the user actually typed, and the second element is the selected output as
described above and depending on the state of ``multi``.

``False`` by default.

Corresponds to ``--print-query`` option.

*New in version 0.3.0.*

``encoding``
The text encoding name (e.g. ``'utf-8'``, ``'ascii'``) to be used for
encoding ``iterable`` values and decoding return values. It's ignored
when the ``iterable`` values are byte strings.

The Python's default encoding (i.e. ``sys.getdefaultencoding()``) is used
by default.

``extended``
``True`` for extended-search mode. ``False`` to turn it off.

``True`` by default.

``True`` corresponds to ``-x``/``--extended`` option, and
``False`` corresponds to ``+x``/``--no-extended`` option.

``exact``
``False`` for fuzzy matching, and ``True`` for exact matching.

``False`` by default.

Corresponds to ``-e``/``--exact`` option.

``case_sensitive``
``True`` for case sensitivity, and ``False`` for case insensitivity.
``None``, the default, for smart-case match.

``True`` corresponds to ``+i`` option and ``False`` corresponds to
``-i`` option.

``query``
The query string to be filled at first. (It can be removed by a user.)

Empty string by default.

Corresponds to ``-q``/``--query`` option.

``prompt``
The prompt sequence. ``' >'`` by default.

Corresponds to ``--prompt`` option.

``preview``
The preview command to execute. ``None`` by default.

Corresponds to ``--preview`` option.

``mouse``
``False`` to disable mouse. ``True`` by default.

Corresponds to ``--no-mouse`` option.

``ansi``
``True`` to enable ansi colors mode. ``None`` by default.

Corresponds to ``--ansi`` option.

``cycle``
``True`` to enable cycling scrolling.

``False`` by default.

Corresponds to ``--cycle`` option.

``__extra__``
The iterable of extra raw options/arguments to pass to ``fzf``.

Empty by default.

Author and license
------------------

The ``iterfzf`` library is written by `Hong Minhee`__ and distributed under
GPLv3_ or later.

The ``fzf`` program is written by `Junegunn Choi`__ and distributed under
MIT license.

__ https://hongminhee.org/
.. _GPLv3: https://www.gnu.org/licenses/gpl-3.0.html
__ https://junegunn.kr/

Changelog
---------

Versioning scheme
~~~~~~~~~~~~~~~~~

Note that ``iterfzf`` does *not* follow `Semantic Versioning`_. The version
consists of its own major and minor number followed by the version of bundled
``fzf``. For example, 1.2.3.4.5 means that ``iterfzf``'s own major version
is 1, and its own minor version is 2, plus the version of ``fzf`` it bundles
is 3.4.5.

.. code-block:: text

/---------- 1. iterfzf's major version
| /------ 3. bundled fzf's major version
| | /-- 5. bundled fzf's patch version
| | |
v v v
1.2.3.4.5
^ ^
| |
| \---- 4. bundled fzf's minor version
\-------- 2. iterfzf's minor version

.. _Semantic Versioning: http://semver.org/

Version 1.5.0.54.3
~~~~~~~~~~~~~~~~~~

To be released. Bundles ``fzf`` `0.54.3`__.

__ https://github.com/junegunn/fzf/releases/tag/v0.54.3

Version 1.4.0.54.3
~~~~~~~~~~~~~~~~~~

Released on August 24, 2024. Bundles ``fzf`` `0.54.3`__.

__ https://github.com/junegunn/fzf/releases/tag/v0.54.3

Version 1.4.0.51.0
~~~~~~~~~~~~~~~~~~

Released on May 7, 2024. Bundles ``fzf`` `0.51.0`__.

- Added ``bind`` option. [`#21`__, `#36`__ by Gregory.K]

__ https://github.com/junegunn/fzf/releases/tag/0.51.0
__ https://github.com/dahlia/iterfzf/issues/21
__ https://github.com/dahlia/iterfzf/pull/36

Version 1.3.0.51.0
~~~~~~~~~~~~~~~~~~

Released on May 6, 2024. Bundles ``fzf`` `0.51.0`__.

- Added ``sort`` option. [`#18`__, `#35`__ by Gregory.K]
- Officially support Python 3.12.

__ https://github.com/junegunn/fzf/releases/tag/0.51.0
__ https://github.com/dahlia/iterfzf/issues/18
__ https://github.com/dahlia/iterfzf/pull/35

Version 1.2.0.46.1
~~~~~~~~~~~~~~~~~~

Released on March 6, 2024. Bundles ``fzf`` `0.46.1`__.

- Close stdin before waiting to allow ``--select-1`` to work.
[`#34`__ by Alex Wood]

__ https://github.com/junegunn/fzf/releases/tag/0.46.1
__ https://github.com/dahlia/iterfzf/pull/34

Version 1.1.0.44.0
~~~~~~~~~~~~~~~~~~

Released on November 18, 2023. Bundles ``fzf`` `0.44.0`__.

- Added ``cycle`` option. [`#33`__ by Daniele Trifirò]
- Added ``__extra__`` option. [`#32`__]

__ https://github.com/junegunn/fzf/releases/tag/0.44.0
__ https://github.com/dahlia/iterfzf/pull/33
__ https://github.com/dahlia/iterfzf/issues/32

Version 1.0.0.42.0
~~~~~~~~~~~~~~~~~~

Released on September 18, 2023. Bundles ``fzf`` `0.42.0`__.

- Dropped Python 2.7, 3.5, 3.6, and 3.7 supports.
- Officially support Python 3.8, 3.9, 3.10, and 3.11.
- Dropped FreeBSD i386, Linux i686, Linux armv8l, OpenBSD i386, and Windows
32-bit supports as fzf no longer supports them.
- Dropped OpenBSD amd64 support.
- Except the first parameter ``iterable``, all parameters are enforced to be
keyword-only. (Note that it's always been the recommended way to pass
options, although it was not enforced.)
- Added ``ansi`` option. [`#16`__ by Erik Lilja]
- The ``executable`` parameter now takes ``os.PathLike`` instead of ``str``,
which is backward compatible.
- Added ``__version__`` and ``__fzf_version__`` attributes to the module.
- Added ``POSIX_EXECUTABLE_NAME`` and ``WINDOWS_EXECUTABLE_NAME`` attributes
to the module.
- Module attribute ``EXECUTABLE_NAME`` is now a ``Literal['fzf', 'fzf.exe']``
type, which is backward compatible with the previous ``str`` type.
- Module attribute ``BUNDLED_EXECUTABLE`` is now ``Optional[pathlib.Path]``
type.

__ https://github.com/junegunn/fzf/releases/tag/0.42.0
__ https://github.com/dahlia/iterfzf/pull/16

Version 0.5.0.20.0
~~~~~~~~~~~~~~~~~~

Released on February 9, 2020. Bundles ``fzf`` 0.20.0.

- Dropped Python 2.6, 3.3, and 3.4 supports.
- Officially support Python 3.7 (it anyway had worked though).
- Marked the package as supporting type checking by following `PEP 561`_.
- Added ``preview`` option. [`#6`__ by Marc Weistroff]
- Fixed a bug which had raised ``IOError`` by selecting an option before
finished to load all options on Windows. [`#3`__ by Jeff Rimko]

.. _PEP 561: https://www.python.org/dev/peps/pep-0561/
__ https://github.com/dahlia/iterfzf/pull/6
__ https://github.com/dahlia/iterfzf/pull/3

Version 0.4.0.17.3
~~~~~~~~~~~~~~~~~~

Released on December 4, 2017. Bundles ``fzf`` 0.17.3.

Version 0.4.0.17.1
~~~~~~~~~~~~~~~~~~

Released on October 19, 2017. Bundles ``fzf`` 0.17.1.

- Added missing binary wheels for macOS again. (These were missing from
0.3.0.17.1, the previous release.)

Version 0.3.0.17.1
~~~~~~~~~~~~~~~~~~

Released on October 16, 2017. Bundles ``fzf`` 0.17.1.

- Added ``print_query`` option. [`#1`__ by George Kettleborough]

__ https://github.com/dahlia/iterfzf/pull/1

Version 0.2.0.17.0
~~~~~~~~~~~~~~~~~~

Released on August 27, 2017. Bundles ``fzf`` 0.17.0.

Version 0.2.0.16.11
~~~~~~~~~~~~~~~~~~~

Released on July 23, 2017. Bundles ``fzf`` 0.16.11.

Version 0.2.0.16.10
~~~~~~~~~~~~~~~~~~~

Released on July 23, 2017. Bundles ``fzf`` 0.16.10.

Version 0.2.0.16.8
~~~~~~~~~~~~~~~~~~

Released on June 6, 2017. Bundles ``fzf`` 0.16.8.

- Upgraded ``fzf`` from 0.16.7 to 0.16.8.

Version 0.2.0.16.7
~~~~~~~~~~~~~~~~~~

Released on May 20, 2017. Bundles ``fzf`` 0.16.7.

- Made sdists (source distributions) possible to be correctly installed
so that older ``pip``, can't deal with wheels, also can install ``iterfzf``.

Version 0.1.0.16.7
~~~~~~~~~~~~~~~~~~

Released on May 19, 2017. Bundles ``fzf`` 0.16.7. The initial release.