I'm kind of new to Jinja2 and am wondering if there is a way to make the templates, while being generated, to print to the console or redirect some output to some kind of stream?
Since Jinja2 templates may have logic inside, I think it would be useful sometimes to log some info in to some kind of logfile, or at least get printed to console.
Is this possible or am I just talking garbage?
I think you can achieve it using filters (http://jinja.pocoo.org/docs/api/#custom-filters) or extensions (http://jinja.pocoo.org/docs/extensions/#adding-extensions). The idea is to just print the filter or extension straight to console.
Not tested but the filter should be something like:
def debug(text):
print text
return ''
environment.filters['debug']=debug
To be used as:
...<p>Hello world!</p> {{"debug text!"|debug}}...
Remember to remove the debug on production code!