Math is a fundamental tool in data visualization. Python provides outstanding math support, which makes it an ideal development environment for performing analysis prior to visualization. Python’s interactive nature makes manipulating data and observing intermediate results easy. Python also makes it easy to modify results and quickly plot them. Another reason I like using Python for data visualization: there are a wide range of popular, freely available, mature numerical packages. Lastly, Python is structured, allowing the development of production-level code for generating quality reports.