code: def import_package(name):
      
      import zipimport
      try:
          mod = __import__(name)
      except ImportError:
          clear_zipimport_cache()
          mod = __import__(name)
  
      components = name.split('.')
      for comp in components[1:]:
          mod = getattr(mod, comp)
      return mod
docs: Given a package name like 'foo.bar.quux', imports the package
      and returns the desired module.