Impromptu (programming environment)
| Impromptu | |
|---|---|
| Paradigm | Functional, multi-paradigm | 
| Designed by | Andrew Sorensen | 
| First appeared | 2005 | 
| Stable release | 2.5
    | 
| Typing discipline | Dynamic & static | 
| OS | Mac OS X | 
| Website | impromptu | 
| Influenced by | |
| Influenced | |
| Extempore | |
Impromptu is a Mac OS X programming environment for live coding. Impromptu is built around the Scheme language, which is a member of the Lisp family of languages. The source code of its core has been opened as the Extempore project.