"OSError: [Errno 1] Operation not permitted" when installing Scrapy in OSX 10.11 (El Capitan) (System Integrity Protection)

pip install --ignore-installed six

Would do the trick.

Source: github.com/pypa/pip/issues/3165

I also think it's absolutely not necessary to start hacking OS X.

I was able to solve it doing a

brew install python

It seems that using the python / pip that comes with new El Capitan has some issues.

As the other answers said, it's because of the new System Integrity Protection, but I believe the other answers are overcomplicated.

If you're only gonna use that package in the current user, you should be able to install it just fine, without the need to disable the SIP, by using the --user flag. Like this:

sudo pip install --user packagename