File "/usr/local/mapzen/whosonfirst-www-spelunker/www/server.py", line 1289, in machinetag_hierarchies
include_filter, exclude_filter, rsp_filter = machinetag.elasticsearch.hierarchy.query_filters(**kwargs)
File "/usr/local/lib/python2.7/dist-packages/machinetag/elasticsearch/hierarchy/__init__.py", line 179, in query_filters
esc_value = machinetag.elasticsearch.escape(kwargs['value'])
AttributeError: 'module' object has no attribute 'escape'