Loading a CIF file from remote drive causes error

[MialLewis]

Describe the bug Loading a CIF file from remote drive (Babylon in this case) causes an error. This could/is probably a bug with the mantid algorithm LoadCIF.

To Reproduce

1. Load \\Olympic\Babylon5\Public\Guidi\Mslice_bug\LET36352_0.65meV_powder.nxspe dataset
2. Plot slice
3. Via the bragg peaks drop down, load the CIF file: \\Olympic\Babylon5\Public\Guidi\Mslice_bug\Fe19etheidi.cif
4. See error

Error in execution of algorithm LoadCIF:
<urlopen error file:// scheme is supported only on localhost>
  at line 381 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 393 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 3107 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\CifFile_module.py'
  caused by line 2174 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\StarFile.py'
  caused by line 222 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 525 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 542 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 502 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 1487 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
Traceback (most recent call last):
  File "c:\repos\github\conda\mantid\framework\pythoninterface\mantid\simpleapi.py", line 1058, in __call__
    algm.execute()
RuntimeError: <urlopen error file:// scheme is supported only on localhost>
  at line 381 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 393 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 3107 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\CifFile_module.py'
  caused by line 2174 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\StarFile.py'
  caused by line 222 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 525 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 542 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 502 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 1487 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\plotting\plot_window\overplot_interface.py", line 66, in cif_file_powder_line
    toggle_overplot_line(plot_handler, plotter_presenter, key, recoil,
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\plotting\plot_window\overplot_interface.py", line 35, in toggle_overplot_line
    plotter_presenter.add_overplot_line(plot_handler.ws_name, key, recoil, cif_file, plot_handler.y_log,
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\presenters\slice_plotter_presenter.py", line 104, in add_overplot_line
    x, y = compute_powder_line(workspace_name, cache.momentum_axis, key, cif_file=cif)
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\models\powder\powder_functions.py", line 51, in compute_powder_line
    x0 = _compute_powder_line_momentum(ws_name, axis, element, cif_file)
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\models\powder\powder_functions.py", line 32, in _compute_powder_line_momentum
    structure = _crystal_structure(ws_name, element, cif_file)
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\models\powder\powder_functions.py", line 64, in _crystal_structure
    LoadCIF(Workspace=ws, InputFile=cif_file)
  File "C:\Repos\GitHub\conda\mantid_build\scripts\ExternalInterfaces\mslice\src\mslice\mslice\util\mantid\algorithm_wrapper.py", line 62, in alg_wrapper
    result = algorithm(*args, **kwargs)
  File "c:\repos\github\conda\mantid\framework\pythoninterface\mantid\simpleapi.py", line 1065, in __call__
    raise RuntimeError(msg) from e
RuntimeError: LoadCIF-v1: <urlopen error file:// scheme is supported only on localhost>
  at line 381 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 393 in 'C:/Repos/GitHub/conda/mantid/Framework/PythonInterface/plugins/algorithms/LoadCIF.py'
  caused by line 3107 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\CifFile_module.py'
  caused by line 2174 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\site-packages\CifFile\StarFile.py'
  caused by line 222 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 525 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 542 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 502 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'
  caused by line 1487 in 'C:\Users\wym92549\AppData\Local\mambaforge\envs\mantid-developer\lib\urllib\request.py'

[SilkeSchomann]

@MialLewis Is this fixed now with PycifRW 4.4.1?

[MialLewis]

No this error persists

[robertapplin]

The error still exists with PycifRW 4.4.5

Same error as reported here https://github.com/Dioptas/Dioptas/issues/80