hylang/hy 0.18.0

on GitHub

Removals

• Python 2 is no longer supported.
• Support for attribute lists in defclass has been removed. Use setv and defn instead.
• Literal keywords are no longer parsed differently in calls to functions with certain names.
• hy.contrib.multi has been removed. Use cond or the PyPI package multipledispatch instead.

Other Breaking Changes

• HySequence is now a subclass of tuple instead of list. Thus, a HyList will never be equal to a list, and you can't use .append, .pop, etc. on a HyExpression or HyList.

New Features

• Added special forms py to pys that allow Hy programs to include inline Python code.
• Added a special form cmp for chained comparisons.
• All augmented assignment operators (except %= and ^=) now allow more than two arguments.
• Added support for function annotations (PEP 3107) and variable annotations (PEP 526).
• Added a function parse-args as a wrapper for Python's argparse.

Bug Fixes

• Statements in the second argument of assert are now executed.
• Fixed a bug that caused the condition of a while to be compiled twice.
• in and not-in now allow more than two arguments, as in Python.
• hy2py can now handle format strings.
• Fixed crashes from inaccessible history files.
• Removed an accidental import from the internal Python module test.
• Fixed a swarm of bugs in hy.extra.anaphoric.

Misc. Improvements

• Replaced the dependency clint with colorama.