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I would like to somehow instrument a mako.lookup.TemplateLookup such that it applies certain preprocessors only for certain file extensions.
Specifically, I have a haml.preprocessor that I would like to apply to all templates whose file name ends with .haml.
Thanks!
900
You should be able to customize TemplateLookup to get the behavior you want.
customlookup.py
from mako.lookup import TemplateLookup
import haml
class Lookup(TemplateLookup):
def get_template(self, uri):
if uri.rsplit('.')[1] == 'haml':
# change preprocessor used for this template
default = self.template_args['preprocessor']
self.template_args['preprocessor'] = haml.preprocessor
template = super(Lookup, self).get_template(uri)
# change it back
self.template_args['preprocessor'] = default
else:
template = super(Lookup, self).get_template(uri)
return template
lookup = Lookup(['.'])
print lookup.get_template('index.haml').render()
index.haml
<%inherit file="base.html"/>
<%block name="content">
%h1 Hello
</%block>
base.html
<html>
<body>
<%block name="content"/>
</body>
</html>
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