Why is 'pip install unroll' Failing with Error Code 1, and How Can I Fix It?

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

Description of the Problem:

Upon attempting to install Python packages using pip, specifically "unroll," users may encounter the following error message:

"Command "python setup.py egg_info" failed with error code 1 in..."

Understanding Error Code 1:

As per the Python documentation, error code 1 corresponds to "Operation not permitted" and originates from the C standard library (errno.h).

Solution:

1. Install setuptools:

The error suggests that the setuptools module is missing. Follow the installation instructions from the PyPI website.

2. Update setuptools (if installed):

If setuptools is already installed, execute:

pip install --upgrade setuptools

3. Install ez_setup (if missing):

If the ez_setup module is missing, install it using:

pip install ez_setup

4. Re-attempt installation:

After completing the above steps, try reinstalling "unroll" using:

pip install unroll

5. Use easy_install as a fallback:

If pip still fails to install setup_tools properly, try:

easy_install -U setuptools

6. Retry pip installation:

Once setuptools is updated, re-attempt the "unroll" installation using pip:

pip install unroll

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