Even before Edison was born, scientists had experimented with making light bulbs. These bulbs burned out after a few minutes. What Edison invented was the first incandescent light that was practical, that would light for hours and hours. He and his muckers also had to invent hundreds of other parts to make the light bulbs in your home work. Light switches, electric meters, wiring--all these had to be invented too.
The pip command is a tool for installing and managing Python packages, such as those found in the Python Package Index. It's a replacement for easy_install.
To verify what environment variables are set, follow the below steps, depending on the Operating System the driver is installed on. Windows 2008, 2003, Vista users Click Start. Type cmd and press enter.In the command window type the command: set Windows XP, 2000, NT users Click Start.