Welcome to Hy’s documentation!¶

Try Hy:	https://try-hy.appspot.com
PyPI:	https://pypi.python.org/pypi/hy
Source:	https://github.com/hylang/hy
List:	hylang-discuss
IRC:	`#hy` on Freenode
Build status:

Hy is a wonderful dialect of Lisp that’s embedded in Python.

Since Hy transforms its Lisp code into the Python Abstract Syntax Tree, you have the whole beautiful world of Python at your fingertips, in Lisp form!

Documentation Index¶

Contents:

Quickstart
Tutorial
Hy Style Guide
Documentation Index
- Command Line Interface
  - hy
  - hyc
  - hy2py
- Hy <-> Python interop
  - Using Python from Hy
  - Using Hy from Python
- Syntax
- Built-Ins
  - .
  - ->
  - ->>
  - and
  - as->
  - assert
  - assoc
  - break
  - comment
  - cond
  - continue
  - do
  - doc / #doc
  - dfor
  - setv
  - defclass
  - defn
  - defn/a
  - defmain
  - defmacro
  - defmacro/g!
  - defmacro!
  - deftag
  - del
  - doto
  - eval-and-compile
  - eval-when-compile
  - first
  - for
  - gensym
  - get
  - gfor
  - global
  - if / if* / if-not
  - lif and lif-not
  - import
  - fn
  - fn/a
  - last
  - lfor
  - nonlocal
  - not
  - or
  - print
  - quasiquote
  - quote
  - require
  - rest
  - return
  - sfor
  - cut
  - raise
  - try
  - unless
  - unpack-iterable, unpack-mapping
  - unquote
  - unquote-splice
  - when
  - while
  - with
  - with/a
  - with-decorator
  - with-gensyms
  - xor
  - yield
  - yield-from
- Hy Core
- Model Patterns
  - A motivating example
  - Usage
- Internal Hy Documentation
Extra Modules Index
- Anaphoric Macros
  - ap-if
  - ap-each
  - ap-each-while
  - ap-map
  - ap-map-when
  - ap-filter
  - ap-reject
  - ap-dotimes
  - ap-first
  - ap-last
  - ap-reduce
  - #%
- Reserved Names
  - names
Contributor Modules Index
- loop/recur
  - Macros
- defmulti
  - defn
  - defmulti
- Profile
  - Macros
- Lazy sequences
  - seq
  - defseq
  - end-sequence
- walk
  - Functions
  - Macros
- Hy representations
  - hy-repr
  - hy-repr-register
Hacking on Hy