Highly js based google plus is crawled with scrapy+selenium+phantomjs
you have to install 2 tools to work this plus spider which will work perfectly with js featers of google plus.
1)selenium package for python pip install selenium 2)phantomjs sudo apt-get install phantomjs or http://phantomjs.org/download.html nd map the phantomjs bin path in line 27 of pspider.py 3)ghostdriver ghost driver is a must tool to work this spider perfect