di in this you'll download data sets from online sources and create working visualizations of that data an incredible variety of data can be found onlinemuch of which hasn' been examined thoroughly the ability to analyze this data allows you to discover patterns and connections that no one else has found we'll access and visualize data stored in two common data formatscsv and json we'll use python' csv module to process weather data stored in the csv (comma-separated valuesformat and analyze high and low temperatures over time in two different locations we'll then use matplotlib to generate chart based on our downloaded data to display