1. Download pip
https://pypi.org/project/pip/
Download the above red line marked, and then open the terminal, CD to the above file download successful setup.py directory, execute sudo python setup.py install
2. Installing Selenium
Networked execution sudo pip install–u Selenium (default is the latest 3)
If you want to switch to SELENIUM2 and have installed SELENIUM3, you can enter: sudo pip uninstall selenium in the terminal CD to selenium3 installation directory, prompt for proceed (y/n), enter Y. Uninstall selenium, and re-enter the sudo pip install selenium==2.53.6 installation selenium2
3. Install Pycharm:
https://www.jetbrains.com/pycharm/download/
Installation, all the way to install, until the end of time, you can surf the internet to find broken decoding what. I have directly modified the system time for 10 years, and then choose a trial period of 30 days, this way I can use for 10 years. After the installation of the system and then the time to change back to the good
Build Python2.7+selenium+pycharm under Mac