"conda env create" crashes for MacOS + python 3.10, 3.11

[giardiaspace]

When I try to create the stenv environment, conda crashes.

Steps that can reproduce the error:

1. curl -L "https://github.com/spacetelescope/stenv/releases/download/2023.04.14/stenv-macOS-py3.11-2023.04.05.yaml" -o ~/.conda/stenv-macOS-py3.11-2023.04.05.yaml
2. conda env create --file ~/.conda/stenv-macOS-py3.11-2023.04.05.yaml --name stenv
3. Here is a partial error output from the resulting crash:

Failed to build opencv-python
  Building wheel for opencv-python (pyproject.toml) did not run successfully.
        CMake's 'find_host_package(PythonInterp 2.7)' found wrong Python version:
      
        PYTHON_EXECUTABLE=/Users/mikewong/opt/anaconda3/envs/stenv/bin/python
      
        PYTHON_VERSION_STRING=3.11.3
      
        Consider providing the 'PYTHON2_EXECUTABLE' variable via CMake command line
        or environment variables
      
      [  0%] Built target opencv_dnn_plugins
      [  0%] Built target opencv_highgui_plugins
      [  0%] Building ASM_NASM object 3rdparty/libjpeg-turbo/src/simd/CMakeFiles/jsimd.dir/x86_64/jsimdcpu.asm.o
      nasm: error: unable to find utility "nasm", not a developer tool or in PATH
      make[2]: *** [3rdparty/libjpeg-turbo/src/simd/CMakeFiles/jsimd.dir/x86_64/jsimdcpu.asm.o] Error 72
      make[1]: *** [3rdparty/libjpeg-turbo/src/simd/CMakeFiles/jsimd.dir/all] Error 2
      make: *** [all] Error 2
      Traceback (most recent call last):

      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for opencv-python
  ERROR: Could not build wheels for opencv-python, which is required to install pyproject.toml-based projects

Hardware/software info if relevant:
Model Name: Mac Pro
Model Identifier: MacPro5,1
Processor Name: Quad-Core Intel Xeon
System Version: macOS 10.14.6 (18G9323)
Kernel Version: Darwin 18.7.0
conda version : 22.9.0

Could this relate to opencv-python not supporting builds in Mac OS 10.x any more? See "Backward compatibility" here and this issue thread.

I tried to insteall with python 3.10 instead of 3.11, and set opencv-python==4.6.0.66 in the yaml, but pip again crashed trying to install opencv-python.

Is there any way you could modify dependencies to use opencv-python-headless instead? I ask because this command works fine:

conda install opencv-python-headless=4.7.0.72 -n stenv -c fastai

[zacharyburnett]

We've tested opencv-python-headless in the step code, and it should work well according to the tests. You should see this change in the next set of releases of stcal and jwst; I will make sure to make another stenv release as well including this

[giardiaspace]

Hi Zach, Thanks for looking into that. I kept running into further problems, so I am finally starting to accept that my 2010 computer running macos 10.14 is not going to be able to keep going. But I was able to easily install stenv (with the existing YAML) on my laptop running macos 14. I just didn't want my laptop to be tied up in processing batches. Thanks again for your responsiveness. On Fri, 28 Apr 2023, Zach Burnett wrote: - We've tested `opencv-python-headless` in the step code, and it should work well according to the tests. You should see this change in the next set of releases of `stcal` and `jwst` - - -- - Reply to this email directly or view it on GitHub: - #103 (comment) - You are receiving this because you authored the thread. - - Message ID: ***@***.***> ................................mike wong................... center for integrative planetary science university of california berkeley CA 94720-3411 astro.berkeley.edu/~mikewong campbell hall 215 (office) 510-207-2236 (cell)