Why Does 'pip install unroll' Fail with Error Code 1: 'python setup.py egg_info' Failed?

Troubleshooting "pip install unroll": "python setup.py egg_info" Failed with Error Code 1

Attempts to install the 'unroll' package using 'pip' may encounter an error message stating, "Command 'python setup.py egg_info' failed with error code 1." This issue stems from an underlying error code associated with operation permissions.

Understanding Error Code 1

In the Python documentation, error code 1 is defined as "Operation not permitted." This error code originates from 'errno.h', indicating that the operating system is unable to execute a certain operation.

Resolving the Error

To address this error, verifying and installing or upgrading 'setuptools' is recommended. Refer to the PyPI website's Installation Instructions for detailed guidance.

If 'setuptools' is already installed, execute the following commands:

pip install --upgrade setuptools

If setuptools is up to date, confirm the presence of the 'ez_setup' module. If absent, install it using:

pip install ez_setup

Subsequently, attempt the installation again:

pip install unroll

If the issue persists, ensure that 'pip' correctly installed/upgraded 'setuptools' by running the following command:

easy_install -U setuptools

Finally, try installing 'unroll' once more:

pip install unroll

By following these steps, the error "python setup.py egg_info" failed with error code 1" should be resolved, allowing for successful installation of the desired package using 'pip'.

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