iterfzf: Pythonic interface to fzf

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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 2.7, 3.5 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. Please 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.

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.

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.

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 0.6.0.20.0

To be released. Bundles fzf 0.20.0.

Added ansi option. [#16 by Erik Lilja]

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.