def __setitem__(self, key, value):
        for idx, sha_name in enumerate(self.sha_names):
            sha, name = sha_name
            if name == key:
                self.sha_names[idx] = (value, name)
                return
        raise KeyError("no item with name '%s'" % key)
Set SHA1 of sha_name tuple with name that matches *key* to *value*.
dataset/ETHPy150Open python-openxml/opc-diag/features/steps/step_data.py/_Manifest.__setitem__