I use a gettext wrapper function with slightly modified semantics. I have written a Python message extractor for it, and now I would like to use the same extractor also in Mako. Would it be possible to specify the extract_python function to be should be used in mako.ext.babelplugin:extract_nodes ?
A simple solution would be along the lines of:
extractor = options.get('python_extract_function', extract_python)
and then calling extractor instead of extract_python directly.
Or, the babel.messages.extract:extract function could be called directly, for access to Babel's dispatching mechanism (with a slight backwards incompatibility):
from babel.messages.extract import extract as babel_extract
...
method = options.get('python_extractor', 'python')
and call babel_extract(method, ...) instead of extract_python(...)
(Sorry for filing this under the "runtime" component, it doesn't fit in any of the available ones.)