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Why Does My Conda Environment Load Unexpected Python Paths, and How Can I Fix It?
Published on 2024-12-21
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Unexpected Python Paths in Conda Environment
When using a Conda environment, you may encounter an unexpected ordering of directories in the Python path, with local non-Conda paths taking precedence over Conda counterpart packages. This behavior, described in PEP 370, prioritizes packages installed at the user level, preceding those installed in the prefix site (e.g., Conda).
Options for Prioritizing Conda Packages
To avoid loading user-level site-packages, you have several options:
- Environment Variables: Set PYTHONNOUSERSITE=1 to disable user-level site-packages.
- Python -s Flag: Run python with the -s argument to explicitly prevent user-level site packages.
- Remove User-Level Installs: Delete the ~/.local/lib/python* folders to eliminate future user-level installations.
- Conda Ecosystem Package: Install the conda-ecosystem-user-package-isolation package to set PYTHONNOUSERSITE=1 by default.
Alternative Granular Options
For more granular control, consider the following packages:
- envvar-pythonnousersite-true: Sets PYTHONNOUSERSITE=1.
- envvar-pythonpath-null: Clears the PYTHONPATH environment variable.
These options allow you to tailor the Python path configuration to meet your specific needs and ensure proper package precedence within Conda environments.
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