What does " Command "python setup.py egg_info" failed with error code 1 " mean?

I keep getting an error when I try to install some basic python libraries like BeautifulSoup. The error looks like this:

What exactly does that mean, and how do I fix it? I already tried these commands:

pip install --upgrade
pip install
pip install unroll

As it was suggested in other posts, but this didn't seem to help either..

The syntax error Missing parenthesis... clearly shows you have a python3 interpreter trying to execute python2 code. I do not know where you read the installation instructions for 'BeautifulSoup' but according to the documentation, you have two different packages, one for python2 and the other one for python3.
They are installed respectively:

$ apt-get install python-bs4 (for Python 2)

$ apt-get install python3-bs4 (for Python 3)

It is also possible to use pip but the recommended package is beautifulsoup4. As a footnote, they state 'The BeautifulSoup package is probably not what you want. That’s the previous major release'.