ModuleNotFoundError: No module named 'pcdet'

Add ‘import _init_path’ before the imports of pcdet in demo.py worked for me.

Hello everyone,

After the installation of the pcdet pip package I can’t find it. When I type pip list i can’t see pcdet. I have followed the installations steps locally and even using the docker image but don’t seem to be working for me. As soon as i run the demo it says ModuleNotFoundError: No module named 'pcdet'

How can i solve this issue?

This is the output of my python setup.py develop that seems to end correctly:

/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp: In function ‘int ball_query_wrapper_fast(int, int, int, float, int, at::Tensor, at::Tensor, at::Tensor)’:
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:18:16: warning: ‘at::DeprecatedTypeProperties& at::Tensor::type() const’ is deprecated: Tensor.type() is deprecated. Instead use Tensor.options(), which in many cases (e.g. in a constructor) is a drop-in replacement. If you were using data from type(), that is now available from Tensor itself, so instead of tensor.type().scalar_type(), use tensor.scalar_type() instead and instead of tensor.type().backend() use tensor.device(). [-Wdeprecated-declarations]
    if (!x.type().is_cuda()) { \
                ^
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:29:24: note: in expansion of macro ‘CHECK_CUDA’
 #define CHECK_INPUT(x) CHECK_CUDA(x);CHECK_CONTIGUOUS(x)
                        ^~~~~~~~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:34:5: note: in expansion of macro ‘CHECK_INPUT’
     CHECK_INPUT(new_xyz_tensor);
     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:268:30: note: declared here
   DeprecatedTypeProperties & type() const {
                              ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:18:16: warning: ‘at::DeprecatedTypeProperties& at::Tensor::type() const’ is deprecated: Tensor.type() is deprecated. Instead use Tensor.options(), which in many cases (e.g. in a constructor) is a drop-in replacement. If you were using data from type(), that is now available from Tensor itself, so instead of tensor.type().scalar_type(), use tensor.scalar_type() instead and instead of tensor.type().backend() use tensor.device(). [-Wdeprecated-declarations]
    if (!x.type().is_cuda()) { \
                ^
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:29:24: note: in expansion of macro ‘CHECK_CUDA’
 #define CHECK_INPUT(x) CHECK_CUDA(x);CHECK_CONTIGUOUS(x)
                        ^~~~~~~~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:35:5: note: in expansion of macro ‘CHECK_INPUT’
     CHECK_INPUT(xyz_tensor);
     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:268:30: note: declared here
   DeprecatedTypeProperties & type() const {
                              ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:36:55: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const float *new_xyz = new_xyz_tensor.data<float>();
                                                       ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:37:47: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const float *xyz = xyz_tensor.data<float>();
                                               ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:38:37: warning: ‘T* at::Tensor::data() const [with T = int]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     int *idx = idx_tensor.data<int>();
                                     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
[4/9] c++ -MMD -MF /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.o.d -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.o -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -std=c++14
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Parallel.h:149:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/TH/THTensorApply.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/TH/THTensor.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/THC/THCTensor.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/THC/THC.h:13,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:11:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/ParallelOpenMP.h:84:0: warning: ignoring #pragma omp parallel [-Wunknown-pragmas]
 #pragma omp parallel for if ((end - begin) >= grain_size)
 
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp: In function ‘int gather_points_wrapper_fast(int, int, int, int, at::Tensor, at::Tensor, at::Tensor)’:
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:20:53: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const float *points = points_tensor.data<float>();
                                                     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:21:43: warning: ‘T* at::Tensor::data() const [with T = int]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const int *idx = idx_tensor.data<int>();
                                           ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:22:41: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     float *out = out_tensor.data<float>();
                                         ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp: In function ‘int gather_points_grad_wrapper_fast(int, int, int, int, at::Tensor, at::Tensor, at::Tensor)’:
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:32:57: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const float *grad_out = grad_out_tensor.data<float>();
                                                         ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:33:43: warning: ‘T* at::Tensor::data() const [with T = int]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const int *idx = idx_tensor.data<int>();
                                           ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:34:57: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     float *grad_points = grad_points_tensor.data<float>();
                                                         ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp: In function ‘int farthest_point_sampling_wrapper(int, int, int, at::Tensor, at::Tensor, at::Tensor)’:
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:44:53: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     const float *points = points_tensor.data<float>();
                                                     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:45:43: warning: ‘T* at::Tensor::data() const [with T = float]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     float *temp = temp_tensor.data<float>();
                                           ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
/root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:46:37: warning: ‘T* at::Tensor::data() const [with T = int]’ is deprecated: Tensor.data<T>() is deprecated. Please use Tensor.data_ptr<T>() instead. [-Wdeprecated-declarations]
     int *idx = idx_tensor.data<int>();
                                     ^
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Tensor.h:3:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Context.h:4,
                 from /root/.local/lib/python3.7/site-packages/torch/include/ATen/ATen.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/types.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/input-archive.h:6,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/archive.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/serialize/tensor.h:3,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.cpp:8:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/core/TensorBody.h:354:7: note: declared here
   T * data() const {
       ^~~~
[5/9] /usr/local/cuda/bin/nvcc -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/interpolate_gpu.cu -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/interpolate_gpu.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options ''"'"'-fPIC'"'"'' -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_61,code=sm_61 -std=c++14
/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

[6/9] /usr/local/cuda/bin/nvcc -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/sampling_gpu.cu -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/sampling_gpu.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options ''"'"'-fPIC'"'"'' -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_61,code=sm_61 -std=c++14
/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

[7/9] /usr/local/cuda/bin/nvcc -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query_gpu.cu -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query_gpu.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options ''"'"'-fPIC'"'"'' -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_61,code=sm_61 -std=c++14
/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

[8/9] /usr/local/cuda/bin/nvcc -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/group_points_gpu.cu -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/group_points_gpu.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options ''"'"'-fPIC'"'"'' -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_61,code=sm_61 -std=c++14
/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

/root/.local/lib/python3.7/site-packages/torch/include/ATen/record_function.h(18): warning: attribute "__visibility__" does not apply here

[9/9] c++ -MMD -MF /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/pointnet2_api.o.d -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -I/root/.local/lib/python3.7/site-packages/torch/include -I/root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include -I/root/.local/lib/python3.7/site-packages/torch/include/TH -I/root/.local/lib/python3.7/site-packages/torch/include/THC -I/usr/local/cuda/include -I/usr/include/python3.7m -c -c /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/pointnet2_api.cpp -o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/pointnet2_api.o -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=pointnet2_batch_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -std=c++14
In file included from /root/.local/lib/python3.7/site-packages/torch/include/ATen/Parallel.h:149:0,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/utils.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/nn/cloneable.h:5,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/nn.h:3,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/csrc/api/include/torch/all.h:7,
                 from /root/.local/lib/python3.7/site-packages/torch/include/torch/extension.h:4,
                 from /root/OpenPCDet/pcdet/ops/pointnet2/pointnet2_batch/src/pointnet2_api.cpp:2:
/root/.local/lib/python3.7/site-packages/torch/include/ATen/ParallelOpenMP.h:84:0: warning: ignoring #pragma omp parallel [-Wunknown-pragmas]
 #pragma omp parallel for if ((end - begin) >= grain_size)
 
creating build/lib.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch
x86_64-linux-gnu-g++ -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/ball_query_gpu.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/group_points.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/group_points_gpu.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/interpolate.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/interpolate_gpu.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/pointnet2_api.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/sampling.o /root/OpenPCDet/build/temp.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/src/sampling_gpu.o -L/root/.local/lib/python3.7/site-packages/torch/lib -L/usr/local/cuda/lib64 -L/usr/lib -lc10 -ltorch -ltorch_cpu -ltorch_python -lcudart -lc10_cuda -ltorch_cuda -o build/lib.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/pointnet2_batch_cuda.cpython-37m-x86_64-linux-gnu.so
copying build/lib.linux-x86_64-cpython-37/pcdet/ops/iou3d_nms/iou3d_nms_cuda.cpython-37m-x86_64-linux-gnu.so -> pcdet/ops/iou3d_nms
copying build/lib.linux-x86_64-cpython-37/pcdet/ops/roiaware_pool3d/roiaware_pool3d_cuda.cpython-37m-x86_64-linux-gnu.so -> pcdet/ops/roiaware_pool3d
copying build/lib.linux-x86_64-cpython-37/pcdet/ops/roipoint_pool3d/roipoint_pool3d_cuda.cpython-37m-x86_64-linux-gnu.so -> pcdet/ops/roipoint_pool3d
copying build/lib.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_stack/pointnet2_stack_cuda.cpython-37m-x86_64-linux-gnu.so -> pcdet/ops/pointnet2/pointnet2_stack
copying build/lib.linux-x86_64-cpython-37/pcdet/ops/pointnet2/pointnet2_batch/pointnet2_batch_cuda.cpython-37m-x86_64-linux-gnu.so -> pcdet/ops/pointnet2/pointnet2_batch
Creating /usr/lib/python3.7/site-packages/pcdet.egg-link (link to .)
Adding pcdet 0.5.2+846cf3e to easy-install.pth file

Installed /root/OpenPCDet
Processing dependencies for pcdet==0.5.2+846cf3e
Searching for SharedArray==3.2.1
Best match: SharedArray 3.2.1
Adding SharedArray 3.2.1 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for tqdm==4.64.0
Best match: tqdm 4.64.0
Adding tqdm 4.64.0 to easy-install.pth file
Installing tqdm script to /usr/bin

Using /usr/local/lib/python3.7/dist-packages
Searching for scikit-image==0.19.2
Best match: scikit-image 0.19.2
Adding scikit-image 0.19.2 to easy-install.pth file
Installing skivi script to /usr/bin

Using /usr/local/lib/python3.7/dist-packages
Searching for PyYAML==6.0
Best match: PyYAML 6.0
Adding PyYAML 6.0 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for easydict==1.9
Best match: easydict 1.9
Adding easydict 1.9 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for tensorboardX==2.5
Best match: tensorboardX 2.5
Adding tensorboardX 2.5 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for numba==0.55.1
Best match: numba 0.55.1
Adding numba 0.55.1 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for llvmlite==0.38.1
Best match: llvmlite 0.38.1
Adding llvmlite 0.38.1 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for numpy==1.19.3
Best match: numpy 1.19.3
Adding numpy 1.19.3 to easy-install.pth file
Installing f2py script to /usr/bin
Installing f2py3 script to /usr/bin
Installing f2py3.7 script to /usr/bin

Using /usr/local/lib/python3.7/dist-packages
Searching for packaging==21.3
Best match: packaging 21.3
Adding packaging 21.3 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for PyWavelets==1.3.0
Best match: PyWavelets 1.3.0
Adding PyWavelets 1.3.0 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for tifffile==2021.11.2
Best match: tifffile 2021.11.2
Adding tifffile 2021.11.2 to easy-install.pth file
Installing lsm2bin script to /usr/bin
Installing tiff2fsspec script to /usr/bin
Installing tiffcomment script to /usr/bin
Installing tifffile script to /usr/bin

Using /usr/local/lib/python3.7/dist-packages
Searching for imageio==2.19.2
Best match: imageio 2.19.2
Adding imageio 2.19.2 to easy-install.pth file
Installing imageio_download_bin script to /usr/bin
Installing imageio_remove_bin script to /usr/bin

Using /usr/local/lib/python3.7/dist-packages
Searching for Pillow==9.1.1
Best match: Pillow 9.1.1
Adding Pillow 9.1.1 to easy-install.pth file

Using /root/.local/lib/python3.7/site-packages
Searching for networkx==2.6.3
Best match: networkx 2.6.3
Adding networkx 2.6.3 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for scipy==1.7.3
Best match: scipy 1.7.3
Adding scipy 1.7.3 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for protobuf==3.20.1
Best match: protobuf 3.20.1
Adding protobuf 3.20.1 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for six==1.16.0
Best match: six 1.16.0
Adding six 1.16.0 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for setuptools==62.3.2
Best match: setuptools 62.3.2
Adding setuptools 62.3.2 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Searching for pyparsing==3.0.9
Best match: pyparsing 3.0.9
Adding pyparsing 3.0.9 to easy-install.pth file

Using /usr/local/lib/python3.7/dist-packages
Finished processing dependencies for pcdet==0.5.2+846cf3e

my pip list:

root@63061ae39a80:~/OpenPCDet# pip list
Package            Version
------------------ -----------
ccimport           0.3.7
certifi            2022.5.18.1
charset-normalizer 2.0.12
cumm-cu102         0.2.8
easydict           1.9
fire               0.4.0
future             0.18.2
idna               3.3
imageio            2.19.2
importlib-metadata 4.11.3
iotop              0.6
lark               1.1.2
llvmlite           0.38.1
networkx           2.6.3
ninja              1.10.2.3
numba              0.55.1
numpy              1.19.3
packaging          21.3
pccm               0.3.4
Pillow             9.1.1
pip                22.1
portalocker        2.4.0
protobuf           3.20.1
pybind11           2.9.2
pyparsing          3.0.9
PyWavelets         1.3.0
PyYAML             6.0
requests           2.27.1
scikit-image       0.19.2
scipy              1.7.3
setuptools         62.3.2
SharedArray        3.2.1
six                1.16.0
spconv-cu102       2.1.21
tensorboardX       2.5
termcolor          1.1.0
tifffile           2021.11.2
torch              1.6.0
torchvision        0.7.0
tqdm               4.64.0
typing_extensions  4.2.0
urllib3            1.26.9
wheel              0.37.1
zipp               3.8.0

Thank you

@lindahua Hello, Did you solve this problem? I have the same problem. and I tried adding import _init_path befor pcdet errors in demp.py, but still got the same error. would you please say how did you solve it?