Hy (programming language)

Similar to Kawa's and Clojure's mappings onto the Java virtual machine (JVM), Hy is meant to operate as a transparent Lisp front-end for Python. It allows Python libraries, including the standard library, to be imported and accessed alongside Hy code with a compiling step where both languages are converted into Python's AST.

Example code

From the language documentation:

<span id="mwOQ"></span><span class="nv" id="mwOg">=></span><span class="w" id="mwOw"> </span><span class="p" id="mwPA">(</span><span class="nb" id="mwPQ">print</span><span class="w" id="mwPg"> </span><span class="s" id="mwPw">"Hy!"</span><span class="p" id="mwQA">)</span> <span class="nv" id="mwQQ">Hy!</span> <span class="nv" id="mwQg">=></span><span class="w" id="mwQw"> </span><span class="p" id="mwRA">(</span><span class="kd" id="mwRQ">defn </span><span class="nv" id="mwRg">salutationsnm</span><span class="w" id="mwRw"> </span><span class="p" id="mwSA">[</span><span class="nv" id="mwSQ">name</span><span class="p" id="mwSg">]</span><span class="w" id="mwSw"> </span><span class="p" id="mwTA">(</span><span class="nb" id="mwTQ">print</span><span class="w" id="mwTg"> </span><span class="p" id="mwTw">(</span><span class="nf" id="mwUA">+</span><span class="w" id="mwUQ"> </span><span class="s" id="mwUg">"Hy "</span><span class="w" id="mwUw"> </span><span class="nv" id="mwVA">name</span><span class="w" id="mwVQ"> </span><span class="s" id="mwVg">"!"</span><span class="p" id="mwVw">)))</span> <span class="nv" id="mwWA">=></span><span class="w" id="mwWQ"> </span><span class="p" id="mwWg">(</span><span class="nf" id="mwWw">salutationsnm</span><span class="w" id="mwXA"> </span><span class="s" id="mwXQ">"YourName"</span><span class="p" id="mwXg">)</span> <span class="nv" id="mwXw">Hy</span><span class="w" id="mwYA"> </span><span class="nv" id="mwYQ">YourName!</span>