Xonsh

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0.9.3

====================

**Deprecated:**

* Python v3.4 has been fully, completely, and (hopefully) correctly
deprecated. Please migrate to an officially supported version of Python.

**Authors:**

* Anthony Scopatz

0.9.2

====================

**Changed:**

* For aliases, predictor is build with the predictor of original command, in
place of default predictor.

**Fixed:**

* Updated setup.py to require Python 3.4 using the ``python_requires`` keyword.
This rectifies issues with pip installing xonsh. Python 3.4 support will
be removed on the following release.

**Authors:**

* Anthony Scopatz
* Jean-Benoist Leger

0.9.1

====================

**Changed:**

* We no longer manually check the Python version in ``setup.py``,
but instead use the setuptools ``python_requires`` feature.

**Fixed:**

* Updates for integrating with new colors styles in Pygments v2.4.0.

**Authors:**

* Anthony Scopatz

0.9.0

====================

**Added:**

* Implemented the following "bang command" bashisms: ``!$``, ``$*``, ``!^``,
and ``!<str>``. These are in addition to ``!!``, which was already
implemented.
* asciinema (terminal recorder) added in not threadable commands.
* tput added in not threadable commands.
* New ``color_tools.KNOWN_XONSH_COLORS`` frozenset.
* New ``pyghooks.PYGMENTS_MODIFIERS`` mapping from color modifier names to
pygments colors.
* New ``pyghooks.color_name_to_pygments_code()`` function for converting
color names into pygments color codes.

**Changed:**

* Circle now runs ``black`` checks on contents of bundled xontribs

* The ``black`` checks no longer skip some files buried deeper in the directory
tree.
* Errors while formatting the prompt are highlighted for easier debugging.
* Pygments styles only define the standard set of colors, by default.
Additional colors are computed as needed.
* PTYs created for running threadable command have now size set to same size
than main terminal.
* Update documentation pointing to the minimal required version of
Python (3.5).

**Deprecated:**

* Drop support for Python 3.4.

**Removed:**

* ``pyghooks.KNOWN_COLORS`` is no longer needed or useful as pygments colors
are computed automatically.
* ``style_tools.KNOWN_COLORS`` was never used, redundant with
``pyghooks.KNOWN_COLORS`` and has thus been removed.

**Fixed:**

* Fixed a DeprecationWarning that would show up during an import of MutableSet.
* Fixed error with aliases composed of functions wrapped in functools.partial.
* ``black`` formatted all xontribs
* deleting a non existing environement variable with default value do nothing
instead of raising a exception trying to deleting it in existing values dict.
* Fixed crash while converting ANSI color codes with leading zeroes
* Fixed crash while parsing invalid ANSI color code
* fix causing infinite loop when doing ``cat`` empty file
* Fixed issue which occurs when user doesn't have access to parent directory and
xonsh scan all parents directory to find if we are in a Hg repository.
* Fixed issue with pygments-cache not properly generating a cache the first
time when using prompt-toolkit when using ``ptk2``.
This was due to a lingering lazy import of ``pkg_resources``
that has been removed.
* Minor update for Python v3.8.
* Fixed a "'NoneType' object is not iterable" bug when looking up ``stty``
in command cache.
* The release tarball now includes all test files.
* Arguments passed to python in 'scripts/xonsh' and in 'scripts/xonsh-cat' are
now passed by a portable hack in sh, not anymore by /usr/bin/env.

**Authors:**

* Anthony Scopatz
* Gil Forsyth
* Jean-Benoist Leger
* David Strobach
* virus
* Carmen Bianca Bakker
* Alexander Sosedkin
* Kale Kundert
* Andrés García García
* Samuel Dion-Girardeau
* Steven Kryskalla
* Rodrigo Oliveira

0.8.12

====================

**Added:**

* Support for more ANSI escape sequence modifers allowed in color names.
The current modifiers now allowed are: BOLD, FAINT, ITALIC, UNDERLINE,
SLOWBLINK, FASTBLINK, INVERT, CONCEAL, and STRIKETHROUGH.
* New ``ansi_tools.ansi_color_name_to_escape_code()`` function for
converting a color name to an ANSI escape code.
* ``color_tools.RE_XONSH_COLOR`` is a regular expression for matching
xonsh color names.
* ``color_tools.iscolor()`` is a simple function for testing whether a
string is a valid color name or not.
* The ``tools.all_permutations()`` function yields all possible permutations
of an iterable, including removals.

**Changed:**

* change url of xontrib-autojump
* ANSI color styles may now be defined simply by their plain and intense colors.
* ``SET_FOREGROUND_3INTS_`` renamed to ``SET_FOREGROUND_FAINT_``,
``SET_BACKGROUND_3INTS_`` renamed to ``SET_BACKGROUND_FAINT_``,
``SET_FOREGROUND_SHORT_`` renamed to ``SET_FOREGROUND_SLOWBLINK_``, and
``SET_BACKGROUND_SHORT_`` renamed to ``SET_BACKGROUND_SLOWBLINK_``.

**Removed:**

* ``ansi_tools.ANSI_REVERSE_COLOR_NAME_TRANSLATIONS`` removed, as it is
no longer needed.

**Fixed:**

* Fixed issues where ``$LS_COLORS`` could not convert valid ANSI colors.

**Authors:**

* Anthony Scopatz
* virus

0.8.11

====================

**Added:**

* New ``xonsh.color_tools.short_to_ints()`` function for directly
converting a short (0 - 256) color into a 3-tuple of ints
representing its RGB value.
* New ``xonsh.ansi_colors.ansi_reverse_style()`` function for
converting a mapping of color names to ANSI escape codes into
a mapping from escape codes into color names. This is not a
round-trippable operation.
* New ``xonsh.ansi_colors.ansi_color_escape_code_to_name()`` function
for converting an ANSI color escape code into the closest xonsh
color name for a given style.
* New ``xonsh.events.EventManager.exists()`` method enables checking
whether events actually exist without making the event if it
doesn't exist.
* New command-specific event categories called ``on_pre_spec_run_<cmd-name>``
and ``on_post_spec_run_<cmd-name>`` will be fired before and after
``SubpocSpec.run()`` is called. This allows for command specific
events to be executed. For example, ``on_pre_spec_run_ls`` would
be run prior to an invocation of ``ls``.
* New ``xonsh.environ.LsColors`` class for managing the ``$LS_COLORS``
environment variable. This ensures that the ``ls`` command respects the
``$XONSH_COLOR_STYLE`` setting. An instance of this class is added to the
environment when either the ``$LS_COLORS`` class is first accessed or
the ``ls`` command is executed.
* The ``on_pre_spec_run_ls`` event is initialized with a default handler
that ensures that ``$LS_COLORS`` is set in the actual environment prior
to running an ``ls`` command.
* New ``xonsh.tools.detype()`` function that simply calls an object's own
``detype()`` method in order to detype it.
* New ``xonsh.tools.always_none()`` function that simply returns ``None``.
* New ``Env.set_ensurer()`` method for setting an ensurer on an environment.

**Changed:**

* The black and white style ``bw`` now uses actual black and white
ANSI colore codes for its colors, rather than just empty color
sequences.
* An environment variable ``detype`` operation no longer needs to be a
function, but may also be ``None``. If ``None``, this variable is
considered not detypeable, and will not be exported to subprocess
environments via the ``Env.detype()`` function.
* An environment variable ``detype`` function no longer needs to return
a string, but may also return ``None``. If ``None`` is returned, this
variable is considered not detypeable, and will not be exported to
subprocess environments via the ``Env.detype()`` function.
* The ``Env.detype()`` method has been updated to respect the new
``None`` types when detyping.
* The ``xonsh.tools.expandvars()`` function has been updated to respect
the new ``None`` types when detyping.
* The ``xonsh.xonfig.make_xonfig_wizard()`` function has been updated to respect
the new ``None`` types when detyping.
* Event handlers may now be added and discarded during event firing for
normal events. Such modifications will not be applied until the
current firing operation is concluded. Thus you won't see newly added
events fired.
* xonsh now uses its own vendored version of ply. Any installed versions will no longer be used. This reflects that ply is no
longer distributed as an installable package.
* Updated to use ply version 3.11.
* Reverted change in ``give_to_terminal`` to restore working version of
``cmake``, ``rm -i``, etc. This breaks ``pv | head``.

**Deprecated:**

* The ``xonsh.color_tools.make_pallete()`` function is no
longer deprecated, as it is actually needed in other parts of
xonsh still, such as ``pyghooks``.

**Removed:**

* All code references to ``$FORMATTER_DICT`` have been removed.

**Fixed:**

* Resolved issues where macro functions were not able to properly
accept single-line statements in ``exec`` and ``single`` mode.
* Minor fixes to ``xonsh.events.debug_level()``.
* Fixed a regression where some interactive commands were not waited for
properly for long enough.
* Fixed environments not showing in the prompt when using Anaconda Python.

* Fixed regression with anaconda activate/deactivate scripts not working on Windows.

**Authors:**

* Anthony Scopatz
* Morten Enemark Lund

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