code: def zip_tokenize_namespace(zip_src, namespace, logger=None):
      
      if not namespace:
          return zip_src
  
      namespace_prefix = "{}__".format(namespace)
      lightning_namespace = "{}:".format(namespace)
      zip_dest = zipfile.ZipFile(io.BytesIO(), "w", zipfile.ZIP_DEFLATED)
      for name in zip_src.namelist():
          content = zip_src.read(name)
          try:
              content = content.decode("utf-8")
          except UnicodeDecodeError:
              # Probably a binary file; leave it untouched
              pass
          else:
              content = content.replace(namespace_prefix, "%%%NAMESPACE%%%")
              content = content.replace(lightning_namespace, "%%%NAMESPACE_OR_C%%%")
              content = content.encode("utf-8")
              name = name.replace(namespace_prefix, "___NAMESPACE___")
          zip_dest.writestr(name, content)
      return zip_dest
docs: Given a namespace, replaces 'namespace__' with %%%NAMESPACE%%% for all
          files and ___NAMESPACE___ in all filenames in the zip