Setting the Path we started working with python in Calculator in Python. But it should also be noted that we need to set the path for the python if not set by default while installing python. This can be done on Windows Plateform  as: set path=%path%;C:\python37 Typing an end-of-file character (Control-D on Unix, Control-Z on Windows) at the primary prompt causes the interpreter to exit with a zero exit status. If that doesn’t work, you can exit the interpreter by typing the following command: quit() Interactive Mode While working with python, we come across two types of prompts these are the primary and secondary prompt. primary prompt : when you start python prompt that appear is >>>. Secondary Prompt : … for continuous lines secondary prompt is … (three dots. >>> #