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.
Step 3: Locate the file named CMD, right-click on it, and then click Run as administrator option. Step 4: Click on the Yes button when you see the UAC prompt to open Command Prompt as administrator. Good luck! How to pin Command Prompt to the Start screen in Windows 8 guide might also interest you.