docs: def upload(self, pkg_path):
          """
          Upload a python script (or kecpkg) to the service.
  
          .. versionadded:: 1.13
  
          :param pkg_path: path to the python script or kecpkg to upload.
          :type pkg_path: basestring
          :raises APIError: if the python package could not be uploaded.
          :raises OSError: if the python package could not be located on disk.
          """
          if os.path.exists(pkg_path):
              self._upload(pkg_path=pkg_path)
          else:
              raise OSError("Could not locate python package to upload in '{}'".format(pkg_path))