“conda install -c open3d-admin open3d” → not found

[cwreynolds]

I want to use Open3D from Python. I've never touched Open3D, I know a bit of Python, my experience with Anaconda is “used it once, got it working, never touched it again.” I found https://anaconda.org/open3d-admin/open3d which suggestes: conda install -c open3d-admin open3d. On my macOS 12.6.3 M1 laptop, I did:

conda create -n open3d_2023 python=3.10
conda activate open3d_2023
conda install -c open3d-admin open3d

The install got “not found” while mentioning that current channels include https://conda.anaconda.org/open3d-admin/osx-arm64

How should I proceed? The Open3D instructions on GitHub suggest pip install open3d. I do not understand the interaction between conda and the older(?)/underlying(?) pip. Can I just run the pip command while the conda environment is active?

[cwreynolds]

Hoping that the virtual environment would contain any fallout, I decided to just try it. The pip worked, but the installation test code snippet (from https://github.com/isl-org/Open3D) failed.

pip install open3d

Successfully installed Flask-2.2.3 Jinja2-3.1.2 MarkupSafe-2.1.2 addict-2.4.0 attrs-22.2.0 click-8.1.3 configargparse-1.5.3 contourpy-1.0.7 cycler-0.11.0 dash-2.9.1 dash-core-components-2.0.0 dash-html-components-2.0.0 dash-table-5.0.0 fastjsonschema-2.16.3 fonttools-4.39.2 itsdangerous-2.1.2 joblib-1.2.0 jsonschema-4.17.3 jupyter-core-5.3.0 kiwisolver-1.4.4 matplotlib-3.7.1 nbformat-5.7.0 numpy-1.24.2 open3d-0.17.0 packaging-23.0 pandas-1.5.3 pillow-9.4.0 platformdirs-3.2.0 plotly-5.13.1 pyparsing-3.0.9 pyquaternion-0.9.9 pyrsistent-0.19.3 python-dateutil-2.8.2 pytz-2023.2 pyyaml-6.0 scikit-learn-1.2.2 scipy-1.10.1 six-1.16.0 tenacity-8.2.2 threadpoolctl-3.1.0 tqdm-4.65.0 traitlets-5.9.0 werkzeug-2.2.3

python -c "import open3d as o3d; print(o3d.__version__)"

Traceback (most recent call last):
File "", line 1, in
File "/Users/cwr/miniforge3/envs/open3d_2023/lib/python3.10/site-packages/open3d/init.py", line 93, in
from open3d.cpu.pybind import (core, camera, data, geometry, io, pipelines,
ImportError: dlopen(/Users/cwr/miniforge3/envs/open3d_2023/lib/python3.10/site-packages/open3d/cpu/pybind.cpython-310-darwin.so, 0x0002): Library not loaded: '/opt/homebrew/opt/libomp/lib/libomp.dylib'
Referenced from: '/Users/cwr/miniforge3/envs/open3d_2023/lib/python3.10/site-packages/open3d/cpu/pybind.cpython-310-darwin.so'
Reason: tried: '/opt/homebrew/opt/libomp/lib/libomp.dylib' (no such file), '/usr/local/lib/libomp.dylib' (no such file), '/usr/lib/libomp.dylib' (no such file)

[cwreynolds]

WOT!? Nevermind, problem solved. Sorry for the “talking to myself” posts. Taking a moment to read the error above, realizing that it was looking for something called libomp, looked it up, did a:

brew install libomp

Then everything Just Worked. Was able to run all three suggested tests: Verify installation, Python API, and Open3D CLI.

Thanks for Open3D. It looks amazing!

[yalov]

as of now, the last version of open3d-admin open3d on any x64 system is 0.15.1,
and it depends on python 3.8.

I was unable to find conda package of later versions, that able to be installed on python 3.10,
so I am not sure how you manage it.

[mdrahmed]

I am trying to use open3d in linux. I don't think, python-3.10 is compatible with open3d deps. So, I did this and it worked fine,

conda create -n open3d_env python=3.8
conda activate open3d_env
conda install -c open3d-admin open3d

Also, ensure that the open3d-admin channel is correctly configured in your Conda channels,

conda config --show channels
conda config --add channels open3d-admin

[bardia-ardakanian]

Hello everyone, I know I am late to the party but here is what I have found out:

if you want to use both PyTorch and open3d, you should install open3d first because for some versions of torch (in my case torch==1.12.1) the open3d will not load and result in segment fault. I'm entirely not sure why this is the case but conda fails to install these packages together and you always should use '''pip''' to install one of them.

some notes on this matter:

• This method only works for python==3.8. It doesn't work for python=3.9, 3.10, 3.11
• For installing either open3d or torch you have to use pip. Using conda to install them both will result in dependency incompatibility.

conda create -n myenv python=3.8
conda activate myenv
conda install -c open3d-admin open3d
pip install torch==1.12.1 torchvision==0.13.1 torchaudio==0.12.1 

hope this helps! many thanks to @mdrahmed.