(base) fra@fra-VirtualBox:~/spikeinterface-master/examples/modules/sorters$ python3 plot_1_sorters_example.py

/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:838: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(start_frame, (float, np.float)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:844: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(end_frame, (float, np.float)) and np.isfinite(end_frame):
['combinato', 'hdsort', 'herdingspikes', 'ironclust', 'kilosort', 'kilosort2', 'kilosort2_5', 'kilosort3', 'klusta', 'mountainsort4', 'spykingcircus', 'tridesclous', 'waveclus', 'yass']
['herdingspikes', 'mountainsort4', 'spykingcircus', 'tridesclous']
{'detect_sign': -1, 'adjacency_radius': -1, 'freq_min': 300, 'freq_max': 6000, 'filter': True, 'whiten': True, 'curation': False, 'num_workers': None, 'clip_size': 50, 'detect_threshold': 3, 'detect_interval': 10, 'noise_overlap_threshold': 0.15}
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:607: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.int, np.int32, np.int64)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:609: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.float, np.float32, np.float64)):
Warning! The recording is already filtered, but Mountainsort4 filter is enabled. You can disable filters by setting 'filter' parameter to False
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:838: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(start_frame, (float, np.float)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:844: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(end_frame, (float, np.float)) and np.isfinite(end_frame):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:838: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(start_frame, (float, np.float)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:844: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(end_frame, (float, np.float)) and np.isfinite(end_frame):
['combinato', 'hdsort', 'herdingspikes', 'ironclust', 'kilosort', 'kilosort2', 'kilosort2_5', 'kilosort3', 'klusta', 'mountainsort4', 'spykingcircus', 'tridesclous', 'waveclus', 'yass']
['herdingspikes', 'mountainsort4', 'spykingcircus', 'tridesclous']
{'detect_sign': -1, 'adjacency_radius': -1, 'freq_min': 300, 'freq_max': 6000, 'filter': True, 'whiten': True, 'curation': False, 'num_workers': None, 'clip_size': 50, 'detect_threshold': 3, 'detect_interval': 10, 'noise_overlap_threshold': 0.15}
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:607: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.int, np.int32, np.int64)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:609: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.float, np.float32, np.float64)):
['combinato', 'hdsort', 'herdingspikes', 'ironclust', 'kilosort', 'kilosort2', 'kilosort2_5', 'kilosort3', 'klusta', 'mountainsort4', 'spykingcircus', 'tridesclous', 'waveclus', 'yass']
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:838: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(start_frame, (float, np.float)):
Warning! The recording is already filtered, but Mountainsort4 filter is enabled. You can disable filters by setting 'filter' parameter to False
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/extraction_tools.py:844: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  if isinstance(end_frame, (float, np.float)) and np.isfinite(end_frame):
['herdingspikes', 'mountainsort4', 'spykingcircus', 'tridesclous']
{'detect_sign': -1, 'adjacency_radius': -1, 'freq_min': 300, 'freq_max': 6000, 'filter': True, 'whiten': True, 'curation': False, 'num_workers': None, 'clip_size': 50, 'detect_threshold': 3, 'detect_interval': 10, 'noise_overlap_threshold': 0.15}
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:607: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.int, np.int32, np.int64)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:609: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.float, np.float32, np.float64)):
Warning! The recording is already filtered, but Mountainsort4 filter is enabled. You can disable filters by setting 'filter' parameter to False
['combinato', 'hdsort', 'herdingspikes', 'ironclust', 'kilosort', 'kilosort2', 'kilosort2_5', 'kilosort3', 'klusta', 'mountainsort4', 'spykingcircus', 'tridesclous', 'waveclus', 'yass']
['herdingspikes', 'mountainsort4', 'spykingcircus', 'tridesclous']
{'detect_sign': -1, 'adjacency_radius': -1, 'freq_min': 300, 'freq_max': 6000, 'filter': True, 'whiten': True, 'curation': False, 'num_workers': None, 'clip_size': 50, 'detect_threshold': 3, 'detect_interval': 10, 'noise_overlap_threshold': 0.15}
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:607: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.int, np.int32, np.int64)):
/home/fra/anaconda3/lib/python3.8/site-packages/spikeextractors/baseextractor.py:609: DeprecationWarning: `np.float` is a deprecated alias for the builtin `float`. To silence this warning, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  elif isinstance(v, (np.float, np.float32, np.float64)):
Warning! The recording is already filtered, but Mountainsort4 filter is enabled. You can disable filters by setting 'filter' parameter to False
Traceback (most recent call last):
  File "/home/fra/anaconda3/lib/python3.8/site-packages/spikesorters/basesorter.py", line 158, in run
    self._run(recording, self.output_folders[i])
  File "/home/fra/anaconda3/lib/python3.8/site-packages/spikesorters/mountainsort4/mountainsort4.py", line 107, in _run
    sorting = ml_ms4alg.mountainsort4(
  File "/home/fra/anaconda3/lib/python3.8/site-packages/ml_ms4alg/mountainsort4.py", line 35, in mountainsort4
    MS4.sort()
  File "/home/fra/anaconda3/lib/python3.8/site-packages/ml_ms4alg/ms4alg.py", line 701, in sort
    dask.compute(*dask_list, num_workers=self._num_workers)
  File "/home/fra/anaconda3/lib/python3.8/site-packages/dask/base.py", line 565, in compute
    results = schedule(dsk, keys, **kwargs)
  File "/home/fra/anaconda3/lib/python3.8/site-packages/dask/multiprocessing.py", line 197, in get
    pool = context.Pool(num_workers, initializer=initialize_worker_process)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/context.py", line 119, in Pool
    return Pool(processes, initializer, initargs, maxtasksperchild,
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/pool.py", line 212, in __init__
    self._repopulate_pool()
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/pool.py", line 303, in _repopulate_pool
    return self._repopulate_pool_static(self._ctx, self.Process,
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/pool.py", line 326, in _repopulate_pool_static
    w.start()
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/process.py", line 121, in start
    self._popen = self._Popen(self)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/context.py", line 284, in _Popen
    return Popen(process_obj)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    super().__init__(process_obj)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 154, in get_preparation_data
    _check_not_importing_main()
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 116, in spawn_main
    exitcode = _main(fd, parent_sentinel)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 125, in _main
    prepare(preparation_data)
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 236, in prepare
    _fixup_main_from_path(data['init_main_from_path'])
  File "/home/fra/anaconda3/lib/python3.8/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    main_content = runpy.run_path(main_path,
  File "/home/fra/anaconda3/lib/python3.8/runpy.py", line 265, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/home/fra/anaconda3/lib/python3.8/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/home/fra/anaconda3/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/fra/spikeinterface-master/examples/modules/sorters/plot_1_sorters_example.py", line 46, in <module>
    sorting_MS4 = ss.run_mountainsort4(recording=recording, **default_ms4_params,
  File "/home/fra/anaconda3/lib/python3.8/site-packages/spikesorters/sorterlist.py", line 342, in run_mountainsort4
    return run_sorter('mountainsort4', *args, **kwargs)
  File "/home/fra/anaconda3/lib/python3.8/site-packages/spikesorters/sorterlist.py", line 93, in run_sorter
    sorter.run(raise_error=raise_error, parallel=parallel, n_jobs=n_jobs, joblib_backend=joblib_backend)
  File "/home/fra/anaconda3/lib/python3.8/site-packages/spikesorters/basesorter.py", line 169, in run
    raise SpikeSortingError(f"Spike sorting failed: {err}. You can inspect the runtime trace in "
spikesorters.sorter_tools.SpikeSortingError: Spike sorting failed: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.. You can inspect the runtime trace in the mountainsort4.log of the output folder.'