Firstly, thank you for your great work! Following your README.md, I installed the s2cnn successfully. However, when I run `example/equivariance_error.py`, error occurs: ``` (cuda9) jiankai@fibonacci:~/data/Applications/s2cnn/examples/equivariance_error$ python main.py compute 0.pkl.gz... save 0.pkl.gz... done Traceback (most recent call last): File "main.py", line 40, in <module> y = phi(x) File "main.py", line 27, in phi x = s2_conv(x) File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/torch/nn/modules/module.py", line 477, in __call__ result = self.forward(*input, **kwargs) File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/soft/s2_conv.py", line 40, in forward File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/soft/s2_fft.py", line 251, in forward File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/soft/s2_fft.py", line 28, in s2_fft File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/soft/s2_fft.py", line 52, in _s2_fft File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/soft/s2_fft.py", line 201, in _setup_s2fft_cuda_kernel File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/s2cnn-1.0.0-py3.6.egg/s2cnn/utils/cuda.py", line 20, in compile_kernel File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/pynvrtc/compiler.py", line 52, in __init__ include_names) File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/pynvrtc/interface.py", line 200, in nvrtcCreateProgram c_char_p(encode_str(src)), c_char_p(encode_str(name)), File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/pynvrtc/interface.py", line 54, in encode_str return s.encode("utf-8") AttributeError: 'bytes' object has no attribute 'encode' Exception ignored in: <bound method Program.__del__ of <pynvrtc.compiler.Program object at 0x7f9070bdb550>> Traceback (most recent call last): File "/home/jiankai/miniconda3/envs/cuda9/lib/python3.6/site-packages/pynvrtc/compiler.py", line 56, in __del__ self._interface.nvrtcDestroyProgram(self._program) AttributeError: 'Program' object has no attribute '_program' ``` It seems that this problem is caused by `pynvrtc`, do you have any suggestions? Thank you!