Issue with installation on windows for version 2.13.2 (2024-09)

[mcgregorian1]

Issue

I tried downloading and installing CloudComPy following the instructions, but the cloudComPy module can't be found when running envCloudComPy.bat.

What I have done to solve the problem

I ensured I followed the installation steps here, including the activation and addition of packages. I installed it the same way on another computer and got the same error. I've also checked some of the other issues; this is similar to Issue #181 but the author of that issue did not put what solved the problem. I figured I'd open a new issue because it's with a newer version.

Error messages

When I activate the environment and try to use it, the import cloudComPy attempt fails. Note that I get the path to the conda environment programmatically because this script is used by different computers at different work sites. In this case, my condaPath variable is C:\Users\mcgregori\.conda\envs\CloudComPy310.

@echo off
:: Step 1. Get the conda env path for CloudComPy
for /f "usebackq tokens=1,2" %%a in (`conda info --envs ^| findstr /c:"CloudComPy"`) do @set condaPath=%%b
echo This is the envpath: %condaPath%

:: Step 2. Activate the conda environment
call activate %condaPath%

:: Step 3. Check the env is correct and the paths are set
call CloudComPy310\envCloudComPy.bat

:: do script here

call conda deactivate

I've found that whether I run the contents of the .bat file above, or whether I manually run the following, I get the same error (below). I have a feeling I'm missing something simple, but do you have a recommendation for how to fix this?

conda activate C:\Users\mcgregori\.conda\envs\CloudComPy310
python
import cloudComPy as cc

Error

Checking environment, Python test: import cloudComPy
The environment seems to be incorrect! You need to set the conda environment for cloudComPy before runnfor cloudComPy before running this script!
"Incorrect Environment! Problem with Python test!"

[prascle]

Hello,
Unfortunately, some time after releasing the latest version, I found that the list of packages I give here for the conda CloudComPy310 environment is not precise enough and that many package versions should be specified (conda packages are always being updated and what works once may be incorrect a few days later).
When you download the version here, the instructions given on the download page are up to date. If you haven't already done so, please recreate the environment with:

conda activate
conda update -y -n base -c defaults conda

conda create -y --name CloudComPy310 python=3.10
   # --- erase previous env with the same name if existing

conda activate CloudComPy310
conda config --add channels conda-forge
conda config --set channel_priority flexible
conda install -y "boost=1.84" "cgal=5.6" cmake "draco=1.5" "ffmpeg=6.1" "gdal=3.8" jupyterlab laszip "matplotlib=3.9" "mpir=3.0" "mysql=8" notebook numpy "opencv=4.8" "openmp=8.0" "openssl=3.1" "pcl=1.14" "pdal=2.6" "psutil=6.0" pybind11 quaternion "qhull=2020.2" "qt=5.15.8" scipy sphinx_rtd_theme spyder tbb tbb-devel "xerces-c=3.2"

I hope this solves your problem.
Best regards,
Paul

[mcgregorian1]

Hi Paul,

Ah I see, that makes sense! I can confirm that when creating the environment again with those packages you listed, the environment test is passed.

However, I now have an instance where when I run the .bat file contents as above, I get no error.

But when I do the following code manually, it says there is no module named cloudComPy. Do you have an idea why this would be happening even though I'm accessing the same conda environment?

conda activate C:\Users\mcgregori\.conda\envs\CloudComPy310
python
import cloudComPy as cc

>>> import cloudComPy as cc
Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cloudComPy'

[prascle]

Hi Ian,
envCloudComPy.bat is mandatory, it is needed to add cloudComPy in the Python path.
So :

(base) C:\Users\paulr>Conda activate CloudComPy310

(CloudComPy310) C:\Users\paulr>CloudComPy\install\CloudComPy310_20240927\CloudComPy310\envCloudComPy.bat
Checking environment, Python test: import cloudComPy
Environment OK!

(CloudComPy310) C:\Users\paulr>python
Python 3.10.13 | packaged by conda-forge | (main, Oct 26 2023, 18:01:37) [MSC v.1935 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import cloudComPy as cc
QFileSystemWatcher: Removable drive notification will not work if there is no QCoreApplication instance.
JsonRPCPlugin::JsonRPCPlugin
>>>

Best regards,
Paul

[mcgregorian1]

Ahh right, got it. My bad, thank you!