Brython documentation

Options of function `brython()`

To run the Python scripts in the page, you must call the function brython() on page load.

<body onload="brython([options])">

options can be an integer, in this case it is the debug level :

0 (default) : no debugging. Use this when the application is debugged, it slightly speeds up execution
1 : error messages are printed in the browser console (or to the output stream specified by sys.stderr)
2 : the translation of Python code into Javascript code is printed in the console
10 : the translation of Python code and of the imported modules is printed in the console

options can be a Javascript object, its keys can be

debug : debug level (see above)
cache : if set to true, the Ajax calls to import modules, load external scripts by <script src="foo.py"> or read files with open() use the browser cache. Defaults to false.
static_stdlib_import : boolean, indicates if, in order to import modules or packages from the standard library, the static mapping table in the script stdlib_paths.js should be used. Defaults to true
pythonpath : a list of paths where imported modules should be searched
ids : by default, the function brython() runs all the scripts in the page. This option specifies a list of element identifiers (tag attribute id) whose text content must be run as Python code
ipy_id": same as ids*. See brythonmagic for more information
indexedDB : specifies if the program can use the indexedDB database to store a compiled version of the modules located in brython_stdlib.js or brython_modules.js. Defaults to true.

brython({debug:1, ids:['hello']})

will run the content of the element with id "hello" with debug level 1