Load dicom path in unicode

i want to load dicom in chinese path, i change CTK source code,and set python defaultencoding to utf-8, now import chinese path is ok, examine is ok, but when click load button,some error:
Loading with imageIOName: GDCM
vtkITKArchetypeImageSeriesReader::ExecuteInformation: Archetype file C:/Users/Dell/Desktop/e3d/数据CT/测试/IMG00282.dcm does not existAlgorithm vtkITKArchetypeImageSeriesScalarReader(000002024FFFD6A0) returned failure for request: vtkInformation (0000020255ECBE20)
Debug: Off
Modified Time: 339515
Reference Count: 1
Registered Events: (none)
Request: REQUEST_INFORMATION
FORWARD_DIRECTION: 0
ALGORITHM_AFTER_FORWARD: 1

Could not read scalar volume using GDCM approach. Error is: FileNotFoundError
Loading with imageIOName: DCMTK
vtkITKArchetypeImageSeriesReader::ExecuteInformation: Archetype file C:/Users/Dell/Desktop/e3d/数据CT/测试/IMG00282.dcm does not existAlgorithm vtkITKArchetypeImageSeriesScalarReader(000002024FFF6000) returned failure for request: vtkInformation (000002025EEA2080)
Debug: Off
Modified Time: 339605
Reference Count: 1
Registered Events: (none)
Request: REQUEST_INFORMATION
FORWARD_DIRECTION: 0
ALGORITHM_AFTER_FORWARD: 1

Could not read scalar volume using DCMTK approach. Error is: FileNotFoundError

???:3: Body 1.0 CE???Scalar Volume

i found error in DICOMScalarVolumePlugin.py function loadFilesWithSeriesReader(self, imageIOName, files, name), so i print the files[0]:
C:/Users/Dell/Desktop/e3d/êy?YCT/2aê?/IMG00282.dcm
i don’t know what this is,
but i print DICOMWidgets.py function getFileListsForRole(self, uidArgument, role) the return fileLists, it’s get CTK dicomdatabase result,the path is:
u’C:/Users/Dell/Desktop/e3d/\u6570\u636eCT/\u6d4b\u8bd5/IMG00001.dcm’
it’s unicode
how can i do

Latin1 encoding is assumed at a number of places in CTK and Slicer. Therefore, currently you can only load data from paths that only contain characters in the Latin1 character set. We would like to improve unicode support of Slicer, so if you can fix the problem then we welcome a pull request.