Python allows free creation of plots ... are right in the graph. Remember to close all parentheses. IPython and Jupyter will help you by highlighting parentheses when you type them.

Jump to: Jupyter is a browser-based, open-source data science notebook tool that supports Python, Julia, and other dynamic programming languages such as R ... the ability to graph or visualize ...

They aren’t the only forum for such conversations — IPython, the interactive Python interpreter on which Jupyter’s predecessor, IPython Notebook, was built, is another. But notebooks allow ...