Use vector in the HZZAnalysis notebook

[Saransh-cpp]

The notebook now uses vector in the calc_mllll function. I wasn't able to run the notebook locally because of an error, but I am hoping that the function is correct. The function has been taken up from this notebook.

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The error that I getting while running the notebook -

ServiceXException: (ServiceXException(...), 'Unable to find name/type uproot in api_endpoints in servicex.yaml configuration file. Saw only names (default, default) and types (xaod, cms_run1_aod)')

Full stack trace:

Trace:

---------------------------------------------------------------------------
ServiceXException                         Traceback (most recent call last)
Input In [10], in <cell line: 4>()
      1 import time
      3 start_time = time.time()
----> 4 output = await run_analysis()
      5 finish_time = time.time()
      7 print("Total runtime in seconds: " + str(finish_time - start_time))

Input In [9], in run_analysis()
      6 ds_names = list(fileset.keys())
      8 # Create the query
----> 9 ds = ServiceXSourceUpROOT('cernopendata://dummy',  'mini', backend_name='uproot')
     10 ds.return_qastle = True
     11 leptons = good_leptons(ds)

File c:\users\saransh\saransh_softwares\python_3.9\lib\site-packages\func_adl_servicex\ServiceX.py:207, in ServiceXSourceUpROOT.__init__(self, sx, treename, backend_name)
    203 def __init__(self, sx: Union[ServiceXDataset, DatasetType], treename: str, backend_name='uproot'):
    204     '''
    205     Create a servicex dataset sequence from a servicex dataset
    206     '''
--> 207     super().__init__(sx, backend_name)
    209     # Modify the argument list in EventDataSset to include a dummy filename and
    210     # tree name
    211     self.query_ast.args.append(ast.Str(s='bogus.root'))  # type: ignore

File c:\users\saransh\saransh_softwares\python_3.9\lib\site-packages\func_adl_servicex\ServiceX.py:57, in ServiceXDatasetSourceBase.__init__(self, sx, backend_name)
     55 # Get the base created
     56 if isinstance(sx, (str, Iterable)):
---> 57     ds = ServiceXDataset(sx, backend_name=backend_name)
     58 else:
     59     ds = sx

File c:\users\saransh\saransh_softwares\python_3.9\lib\site-packages\servicex\servicex.py:270, in ServiceXDataset.__init__(self, dataset, backend_name, image, max_workers, result_destination, servicex_adaptor, minio_adaptor, cache_adaptor, status_callback_factory, local_log, session_generator, config_adaptor, data_convert_adaptor, ignore_cache)
    256 self._cache = (
    257     Cache(
    258         get_configured_cache_path(config.settings),
   (...)
    265     else cache_adaptor
    266 )
    268 if not servicex_adaptor:
    269     # Given servicex adaptor is none, this should be ok. Fixes type checkers
--> 270     end_point, token = config.get_servicex_adaptor_config(backend_name)
    271     servicex_adaptor = ServiceXAdaptor(end_point, token)
    272 self._servicex_adaptor = servicex_adaptor

File c:\users\saransh\saransh_softwares\python_3.9\lib\site-packages\servicex\servicex_config.py:196, in ServiceXConfigAdaptor.get_servicex_adaptor_config(self, backend_name)
    183 def get_servicex_adaptor_config(
    184     self, backend_name: Optional[str] = None
    185 ) -> Tuple[str, Optional[str]]:
    186     """Return the servicex (endpoint, token) from a given backend configuration.
    187 
    188     Args:
   (...)
    194         token (optionally).
    195     """
--> 196     config = self._get_backend_info(backend_name)
    198     endpoint = config["endpoint"]
    199     token = config["token"] if "token" in config else None

File c:\users\saransh\saransh_softwares\python_3.9\lib\site-packages\servicex\servicex_config.py:136, in ServiceXConfigAdaptor._get_backend_info(self, backend_name)
    125         seen_types = [
    126             str(ep["type"].as_str_expanded())
    127             for ep in endpoints
    128             if ep["type"].exists()
    129         ]
    130         seen_names = [
    131             str(ep["name"].as_str_expanded())
    132             for ep in endpoints
    133             if ep["name"].exists()
    134         ]
--> 136         raise ServiceXException(
    137             f"Unable to find name/type {backend_name} "
    138             "in api_endpoints in servicex.yaml configuration file. Saw"
    139             f' only names ({", ".join(seen_names)}) and types '
    140             f'({", ".join(seen_types)})'
    141         )
    143 # Nope - now we are going to have to just use the first one there.
    144 else:
    145     for ep in endpoints:

ServiceXException: (ServiceXException(...), 'Unable to find name/type uproot in api_endpoints in servicex.yaml configuration file. Saw only names (default, default) and types (xaod, cms_run1_aod)')

[alexander-held]

Thanks for including vector here! The ServiceX issue is unrelated to the changes, I will contact you separately regarding this.

[alexander-held]

vector version 0.8.5 is known to slightly change the results compared to the old implementation, this is expected to change in the next release via scikit-hep/vector#172 and scikit-hep/vector#173 (vector master produces the same results as the old code).