ckanext-googleanalytics/ckanext/__init__.py

# this is a namespace package
try:
    import pkg_resources

    pkg_resources.declare_namespace(__name__)
except ImportError:
    import pkgutil

    __path__ = pkgutil.extend_path(__path__, __name__)

try:
    import modulefinder
except ImportError:
    pass
else:
    for p in __path__:
        modulefinder.AddPackagePath(__name__, p)