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Released 2015-11-24, codename "pow pow"
- Optimized the progressbar rendering to not render when it did not
actually change.
- Explicitly disallow ``nargs=-1`` with a set default.
- The context is now closed before it's popped from the stack.
- Added support for short aliases for the false flag on toggles.
- Click will now attempt to aid you with debugging locale errors
better by listing with the help of the OS what locales are
available.
- Click used to return byte strings on Python 2 in some unit-testing
situations. This has been fixed to correctly return unicode strings
now.
- For Windows users on Python 2, Click will now handle Unicode more
correctly handle Unicode coming in from the system. This also has
the disappointing side effect that filenames will now be always
unicode by default in the ``Path`` type which means that this can
introduce small bugs for code not aware of this.
- Added a ``type`` parameter to ``Path`` to force a specific string
type on the value.
- For users running Python on Windows the ``echo`` and ``prompt``
functions now work with full unicode functionality in the Python
windows console by emulating an output stream. This also applies to
getting the virtual output and input streams via
``click.get_text_stream(...)``.
- Unittests now always force a certain virtual terminal width.
- Added support for allowing dashes to indicate standard streams to
the ``Path`` type.
- Multi commands in chain mode no longer propagate arguments left over
from parsing to the callbacks. It's also now disallowed through an
exception when optional arguments are attached to multi commands if
chain mode is enabled.
- Relaxed restriction that disallowed chained commands to have other
chained commands as child commands.
- Arguments with positive nargs can now have defaults implemented.
Previously this configuration would often result in slightly
unexpected values be returned.