old_contents: from pkg_resources import declare_namespace
  declare_namespace(__name__)
  
  import ann
  import data
  __all__ = ['ann', 'data']
new_contents: from pkg_resources import declare_namespace
  declare_namespace(__name__)
  
  import ann
  __all__ = ['ann']
subject: change __init__ for pug.data.weather in pug.ann.data.weather