Practice smart by starting with easier problems to build confidence, recognizing common coding patterns, and managing your time well during tests. Focus on making your code run fast and fixing it when ...

The pandas team has released pandas 3.0.0, a major update that changes core behaviors around string handling, memory ...

When it comes to working with data in a tabular form, most people reach for a spreadsheet. That’s not a bad choice: Microsoft Excel and similar programs are familiar and loaded with functionality for ...

In some ways, data and its quality can seem strange to people used to assessing the quality of software. There’s often no observable behaviour to check and little in the way of structure to help you ...

At each step, the programmer is able to see if, and how, a variable is affected. Trace tables are extremely useful because they enable a programmer to compare what the value of each variable should be ...