When I use medpy.io.load to read .nii files,it always wrong.

[Alagirl]

my code is following:
img, img_header = load(args.data + '/myTrainingData/volume-' + str(idx) + '.nii')

The path is absolutely path.It always show
Traceback (most recent call last):
File "/home/zhounan/PycharmProjects/H-DenseUNet/train_2ddense.py", line 217, in
train_and_predict()
File "/home/zhounan/PycharmProjects/H-DenseUNet/train_2ddense.py", line 186, in train_and_predict
trainidx, img_list, tumor_list, tumorlines, liverlines, tumoridx, liveridx, minindex_list, maxindex_list = load_fast_files(args)
File "/home/zhounan/PycharmProjects/H-DenseUNet/train_2ddense.py", line 142, in load_fast_files
img, img_header = load(os.path.join(args.data, 'myTrainingData/volume-' + str(idx) + '.nii'))
File "/home/zhounan/anaconda3/envs/py27/lib/python2.7/site-packages/medpy/io/load.py", line 113, in load
sitkimage = sitk.ReadImage(image)
File "/home/zhounan/anaconda3/envs/py27/lib/python2.7/site-packages/SimpleITK/SimpleITK.py", line 8876, in ReadImage
return _SimpleITK.ReadImage(*args)
RuntimeError: Exception thrown in SimpleITK ReadImage: /tmp/SimpleITK/Code/IO/src/sitkImageReaderBase.cxx:107:
sitk::ERROR: Unable to determine ImageIO reader for "/home/zhounan/PycharmProjects/H-DenseUNet/data/myTrainingData/volume-1.nii"

what's wrong with it?

[loli]

Unrelated to MedPy.