Mako ‘int’ object is not callable

Sunday, October 28th, 2007

If you’re trying out Mako (the templating language) and you happen to get this error:

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/CherryPy-3.0.1-py2.4.egg/cherrypy/_cprequest.py", line 551, in respond
    cherrypy.response.body = self.handler()
  File "/usr/lib/python2.4/site-packages/CherryPy-3.0.1-py2.4.egg/cherrypy/_cpdispatch.py", line 24, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "./pua.py", line 82, in index
    return Template('index', {'title': 'Title!'})
  File "./pua.py", line 35, in Template
    return(t.render(**vars))
  File "/usr/lib/python2.4/site-packages/Mako-0.1.8-py2.4.egg/mako/template.py", line 114, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/lib/python2.4/site-packages/Mako-0.1.8-py2.4.egg/mako/runtime.py", line 287, in _render
    _render_context(template, callable_, context, *args, **_kwargs_for_callable(callable_, data))
  File "/usr/lib/python2.4/site-packages/Mako-0.1.8-py2.4.egg/mako/runtime.py", line 304, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/lib/python2.4/site-packages/Mako-0.1.8-py2.4.egg/mako/runtime.py", line 337, in _exec_template
    callable_(context, *args, **kwargs)
  File "index_html", line 20, in render_body
TypeError: 'int' object is not callable

Check if your template lookup default_filters has an decoding for utf-8:

template_lookup = mako.lookup.TemplateLookup(
    directories=[path_templates], 
    output_encoding='utf-8', 
    encoding_errors='replace',
    default_filters=['decode.utf-8']
)

If it does, change ‘decode.utf-8’ to ‘decode-utf8’ (remove the dash). This will fix the error. No idea where it comes from, probably the utf-8 decoding doesn’t exist. Me and Michiel now have both suffered from this problem, so there’s bound to be more.

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Mako ‘int’ object is not callable