python - Jinja2 find_undeclared_variables ignores globals? -

i want find out variables of jinja2 template not covered globals. load template source, parse , feed result meta.find_undeclared_variables. no matter in global dictionary of environment full list of variables template. how make operation recognize globals in environment , in template , return list of variables not covered them.

the sample below creates environment, renders template show global variables indeed read , calls meta.find_undeclared_variables show result.

from jinja2 import environment, meta, functionloader, prefixloader  def load_mapping(name):     return 'mapping %s {{version}} {{docid}}' % name  def load_link(name):     return 'link %s {{version}} {{docid}}' % name  loader = prefixloader({     'link': functionloader(load_link),     'map':  functionloader(load_mapping) })  env = environment(loader=loader)  globals = {'version': '1.0'} env.globals.update(globals)  print env.get_template('map/test').render(docid='asdf')  tsrc = env.loader.get_source(env, 'link/test') parsed = env.parse(tsrc) print meta.find_undeclared_variables(parsed) 

the code prints:

mapping test 1.0 asdf set(['version', 'docid']) 

with version being global change code docid returned.

i use python 2.7.6 , jinja 2.7.3.

jinja_globals = env.globals.keys() print meta.find_undeclared_variables(parsed) - set(jinja_globals)