Managing Packages with Pip
Pip is a Python package manager. Many Python package documentation provide
pip instructions that result in permission errors because by default
pip will install in a system-wide location and fail.
Exception: Traceback (most recent call last): ... ... stack trace ... ... OSError: [Errno 13] Permission denied: '/apps/cent7/anaconda/2020.07-py38/lib/python3.8/site-packages/mkl_random-1.1.1.dist-info'
If you encounter this error, it means that you cannot modify the global Python installation. We recommend installing Python packages in a conda environment. Detailed instructions for installing packages with pip can be found in our Python package installation page.
Below we list some other useful pip commands.
- Search for a package in PyPI channels:
$ pip search packageName
- Check which packages are installed globally:
$ pip list
- Check which packages you have personally installed:
$ pip list --user
- Snapshot installed packages:
$ pip freeze > requirements.txt
- You can install packages from a snapshot inside a new conda environment. Make sure to load the appropriate conda environment first.
$ pip install -r requirements.txt
For more information about Python: