And there you have it: now you know how to open CSV files in Python! And with that, you’ve dabbled in your first bit of JSON development and even a bit of data science.

When run it produces: $ python csv1.py A : 1 B : 2 C D : 3 4 A : 5 B : 6 C D : 7 In addition, the csv module provides writer objects for writing CSV files. The following Python program converts our ...

The newly approved Python Enhancement Proposal 751 gives Python a standard lock file format for specifying the dependencies of projects. Here’s the what, why, and when.