[Python-ideas] Summer of Code Project Idea: Python Apps in the Browser
dglick at gmail.com
Fri Aug 26 04:42:12 CEST 2011
On 8/25/11 3:45 PM, Raymond Hettinger wrote:
> The http://gumbyapp.com/ <http://t.co/mPKzyp1> project succeeded in
> getting Python to run in the browser but it can't import pure python
> modules (because there is no filesystem in the browser).
> I think it would be wonderful to beef-up this project by bundling-in
> the rest of the standard library. Gumby was built by compiling
> possible to write a script to transform pure python standard library
> modules into C strings that could also be part of the final build.
> The import-statement would have to be hooked to search for the C
> string instead of a physical file.
> If that technique works, it may not be hard to extend it so that user
> defined python modules could also be incorporated. If so, it would
> become possible to create standalone Python apps that run in the
> browser. The process is likely to be inefficient, but the gumbyapp
> site shows that it might be good enough for some purposes.
Mostly as a joke for this past April Fool's day, Matthew Wilkes and I
cobbled together an import-over-AJAX mechanism  for the Python
interpreter produced by Emscripten  (which similarly translates LLVM
Our goal was getting ZODB running in the browser, with storage in HTML5
localstorage, as demonstrated at http://zodb.ws -- so we focused only on
the pieces of the stdlib necessary to get that running; the emscripten
interpreter was missing a lot and we didn't have time to learn the
emscripten toolchain so we resorted to various hacks (e.g. a simple
incrementer in place of time.time()) and borrowing pure-Python
implementations from pypy.
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