xonsh 0.5.7

on Python PyPI

Added:

• New color_tools module provides basic color tools for converting
  to and from various formats as well as creating pallettes from color
  strings.
• Redirections may now be used in string and list-of-strings
  aliases.
• Subprocess redirection may now forego the whitespace between the
  redirection and a file name. For example,
  echo hello world >/dev/null.
• Add a -P flag to the cd function in order to change directory and
  following symlinks.
• xonfig tutorial command to launch the http://xon.sh/tutorial in the
  browser.
• @(...) syntax now supports generators and tuples without parentheses.
• Sourcing foreign shells now have the --show option, which
  lets you see when script will be run, and the --dryrun
  option which prevents the source from actually taking place.
  Xonsh's foreign shell API also added these keyword arguments.
• Subprocess mode now supports subshells. Place any xonsh
  code between two parentheses, e.g. (cmd), to run
  this command in a separate xonsh subprocess.
• Foreign shell aliases now have the ability to take extra arguments,
  if needed.
• Xonsh will issue a warning message when the current working
  directory has been remove out from under it and not replaced
  prior to running the next command.
• Line continuation backslashes are respected on Windows in the PTK shell if
  the backspace is is preceded by a space.
• Added ponysay as a command which will ususally not run in a
  threaded mode in the commands cache.
• New jsonutils module available for serializing special
  xonsh objects to JSON.

Changed:

• The literal tokens and and or must be surrounded by
  whitespace to delimit subprocess mode. If they do not have
  whitespace on both sides in subproc mode, they are condisered
  to be part of a command argument.
• The xontrib command is now flagged as unthreadable and will be
  run on the main Python thread. This allows xontribs to set signal
  handlers and other operations that require the main thread.
• nvim (Neovim) has been flagged as unthreadable
• The interactive prompt will now catch SystemExit and, instead
  of exiting the session, will refresh the prompt. This is the same
  process as for keyboard interrupts.
• Xonsh no longer launches the wizard for new users. Instead a welcome screen is
  shown which says how to launch the wizard.
• Added Windows expanduser()-like function which prevents
  the expansion of ~ that are not followed by a path
  separator.
• Collecting xonsh history files was reported to have random runtime
  OSError failures. This exception is now handled, just in case. The
  The exception will still be printed in debug mode.
• Shell.stype has been renamed to Shell.shell_type.
• The configuration wizard now displays the proper control sequence to leave
  the wizard at the to start of the wizard itself. Note that this is Ctrl+D for
  readline and Ctrl+C for prompt-toolkit.
• Callable alias proxy functions are now more friendly to
  functools.partial().
• prompt.vc.get_hg_branch now uses os.scandir to walk up the filetree
  looking for a .hg directory. This results in (generally) faster branch
  resolution compared to the subprocess call to hg root.
• Xonsh's script and code caches will are now invalidated whenever the
  xonsh version changes for a given Python version.
• Autowrapping of subprocess globs has been improved to cover
  more cases that are ambiguous with Python syntax.
• Job control info when foregrounding or backgrounding jobs will now
  only be displayed when xonsh is in interactive mode.
• Enabled virtual terminal processing in the prompt-toolkit shell for Windows.

Fixed:

• 3rd party pygments styles (like solorized or monokailight) are now
  able to be used in xonsh. These styles are dynamically created upon
  first use, rather than being lazily loaded by xonsh.
• On Windows, os.environ is case insensitive. This would potentially
  change the case of envrionment variables set into the environment.
  Xonsh now uses nt.envrion, the case sensitive counterpart, to avoid
  these issues on Windows.
• Fix how $PWD is managed in order to work with symlinks gracefully
• history replay no longer barfs on style_name when setting up the
  environment
• Shell.shell_type is now properly set to the same value as $SHELL_TYPE.
• Fixed source-zsh to work with zsh v5.2.
• Fixed issue where del (x, y) would raise a syntax error.
• Certain vim commands issue commands involving subshells,
  and this is now supported.
• Null bytes handed to Popen are now automatically escaped prior
  to running a subprocess. This preevents Popen from issuing
  embedded null byte exceptions.
• Xonsh will no longer crash is the current working directory is
  removed out from under it.
• Multiline strings can now be written in subprocess mode.
• PTK completions will now correctly deduplicate autosuggest completions
  and display completions values based on the cursor position.
• Fixed bug where trailing backspaces on Windows paths could be interpreted
  as line continuations characters. Now line continuation characters must be
  preceded by a space on Windows. This only applies to xonsh in interactive
  mode to ensure scripts are portable.
• Importing *.xsh files will now respect the encoding listed in
  that file and properly fallback to UTF-8. This beahviour follows
  the rules described in PEP 263.
• Wizard is now able to properly serialize envrionment paths.