CUDA Python 13.0.1 on CUDA 13.0 Update 1 if have problem with python -c "from cuda import cuda; print(cuda.cuInit(0))"

[DrStone71]

Hi,

when install directly form nvidia repo CUDA-Python 13.0.1 on Cuda 13.0 Update 1 simple python script fails

python -c "from cuda import cuda; print(cuda.cuInit(0))"
Traceback (most recent call last):
File "", line 1, in
ImportError: cannot import name 'cuda' from 'cuda' (unknown location)

i find this error when compile flashinfer-python

in this moment only solution is return to cuda-python==12.9.2

or update python call to:

python -c "from cuda.bindings import driver; print(driver.cuInit(0))"
(<CUresult.CUDA_SUCCESS: 0>,)

this is log and example.

INSTALL CUDA-PYTHON 13.0.1

    pip3 install --pre --force-reinstall cuda-python
    Looking in indexes: https://pypi.org/simple, https://pypi.ngc.nvidia.com
    Collecting cuda-python
      Using cached cuda_python-13.0.1-py3-none-any.whl.metadata (4.7 kB)
    Collecting cuda-bindings~=13.0.1 (from cuda-python)
      Using cached cuda_bindings-13.0.1-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl.metadata (2.7 kB)
    Collecting cuda-pathfinder~=1.1 (from cuda-python)
      Using cached cuda_pathfinder-1.2.3-py3-none-any.whl.metadata (3.4 kB)
    Using cached cuda_python-13.0.1-py3-none-any.whl (7.6 kB)
    Using cached cuda_bindings-13.0.1-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (12.3 MB)
    Using cached cuda_pathfinder-1.2.3-py3-none-any.whl (26 kB)
    Installing collected packages: cuda-pathfinder, cuda-bindings, cuda-python
      Attempting uninstall: cuda-pathfinder
        Found existing installation: cuda-pathfinder 1.2.3
        Uninstalling cuda-pathfinder-1.2.3:
          Successfully uninstalled cuda-pathfinder-1.2.3
      Attempting uninstall: cuda-bindings
        Found existing installation: cuda-bindings 12.9.2
        Uninstalling cuda-bindings-12.9.2:
          Successfully uninstalled cuda-bindings-12.9.2
      Attempting uninstall: cuda-python
        Found existing installation: cuda-python 12.9.2
        Uninstalling cuda-python-12.9.2:
          Successfully uninstalled cuda-python-12.9.2
    Successfully installed cuda-bindings-13.0.1 cuda-pathfinder-1.2.3 cuda-python-13.0.1

FAILED SCRIPT

    python -c "from cuda import cuda; print(cuda.cuInit(0))"
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
    ImportError: cannot import name 'cuda' from 'cuda' (unknown location)

WITH CORRECT NEW SINTAX:

  python -c "from cuda.bindings import driver; print(driver.cuInit(0))"
  (<CUresult.CUDA_SUCCESS: 0>,)

REINSTALL OLD VERSION:

    pip3 install --pre --force-reinstall cuda-python==12.9.2
    Looking in indexes: https://pypi.org/simple, https://pypi.ngc.nvidia.com
    Collecting cuda-python==12.9.2
      Using cached cuda_python-12.9.2-py3-none-any.whl.metadata (4.7 kB)
    Collecting cuda-bindings~=12.9.2 (from cuda-python==12.9.2)
      Using cached cuda_bindings-12.9.2-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl.metadata (2.6 kB)
    Collecting cuda-pathfinder~=1.1 (from cuda-bindings~=12.9.2->cuda-python==12.9.2)
      Using cached cuda_pathfinder-1.2.3-py3-none-any.whl.metadata (3.4 kB)
    Using cached cuda_python-12.9.2-py3-none-any.whl (7.6 kB)
    Using cached cuda_bindings-12.9.2-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (12.5 MB)
    Using cached cuda_pathfinder-1.2.3-py3-none-any.whl (26 kB)
    Installing collected packages: cuda-pathfinder, cuda-bindings, cuda-python
      Attempting uninstall: cuda-pathfinder
        Found existing installation: cuda-pathfinder 1.2.3
        Uninstalling cuda-pathfinder-1.2.3:
          Successfully uninstalled cuda-pathfinder-1.2.3
      Attempting uninstall: cuda-bindings
        Found existing installation: cuda-bindings 13.0.1
        Uninstalling cuda-bindings-13.0.1:
          Successfully uninstalled cuda-bindings-13.0.1
      Attempting uninstall: cuda-python
        Found existing installation: cuda-python 13.0.1
        Uninstalling cuda-python-13.0.1:
          Successfully uninstalled cuda-python-13.0.1
    Successfully installed cuda-bindings-12.9.2 cuda-pathfinder-1.2.3 cuda-python-12.9.2

SUCCESS SCRIPT:

python -c "from cuda import cuda; print(cuda.cuInit(0))"
:1297: FutureWarning: The cuda.cuda module is deprecated and will be removed in a future release, please switch to use the cuda.bindings.driver module instead.
(<CUresult.CUDA_SUCCESS: 0>,)

[kkraus14]

@DrStone71 as shown in FutureWarning from the success script: doing from cuda import cuda was deprecated in 12.9 and was removed in 13.0. You should use from cuda.bindings import driver as cuda instead if you wish to continue using cuda as the module name.

[leofang]

Please see #75 or the warning message. We have dropped the support for old layout (ex: from cuda import cuda) starting 13.0.0.

[DrStone71]

Strange ! i retest environment for search why when compile i have this old and fix problem.

Thanks for Reply @leofang @kkraus14 !!