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python_virtual_environments

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python_virtual_environments [2023/04/28 15:43] – juckinspython_virtual_environments [2023/08/10 11:34] – juckins
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   * (Accept license agreement and all the suggested default choices)   * (Accept license agreement and all the suggested default choices)
 +  * Note that if you do not want conda's base environment to be activated upon startup, run the following:
  
-  ~/miniconda3/bin/conda create -n testenv -c conda-forge time numpy requests pygrib netCDF4 scipy+  conda config --set auto_activate_base false 
 + 
 +Now try creating a test conda environment: 
 + 
 +  cd ~/miniconda3/envs 
 +  ~/miniconda3/bin/conda create -n testenv2 python=3.11.4 -c conda-forge time numpy requests pygrib netCDF4 scipy
   ~/miniconda3/bin/conda init bash   ~/miniconda3/bin/conda init bash
  
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   conda deactivate   conda deactivate
      
-Other useful commmands: +Other useful commmands (see https://www.python.org/downloads/ for specific python versions) : 
-  conda create -n testenv2 python=3.11.3 (with specific version of python)+  conda create -n testenv2 python=3.11.3
   conda activate testenv2   conda activate testenv2
      
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   conda remove --name myenv --all (remove a conda environment)   conda remove --name myenv --all (remove a conda environment)
  
-__Running a cron under conda__+__Running a cron under conda (is this correct?)__
   21 15 * * * conda activate testenv2; /path/to/script.py > /tmp/output.txt (just call the correct version of python in first line of the script)   21 15 * * * conda activate testenv2; /path/to/script.py > /tmp/output.txt (just call the correct version of python in first line of the script)
  
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     * Update the first line to point to the correct version of python     * Update the first line to point to the correct version of python
   * Run cron under conda   * Run cron under conda
-    * As long as you update the first line in the script to point to the desired version of python, then you don't need to activate the conda env (?)+    * If you update the first line in the script to point to desired conda version of python, then no need to activate the conda env (?)
  
 __Using venv to set up a python virtual environment__ __Using venv to set up a python virtual environment__
python_virtual_environments.txt · Last modified: 2023/08/10 11:35 by juckins