Setting up the environment

[jababanik]

For pip install -U scikit-learn

Error:

Command "/usr/bin/python -u -c "import setuptools, tokenize;file='/tmp/pip-build-vDJ91c/scikit-learn/setup.py';exec(compile(getattr(tokenize, 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record /tmp/pip-P3laW8-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-vDJ91c/scikit-learn

I am not able to comprehend this error.