Duplicate data causes a variety of problems. From the point of view of performance, they use up unnecessary amounts of memory and cause unneeded calculations to be performed when processing data. In ...

Learn how to identify, handle, and prevent duplicate records in your data using Pandas, a popular library for data manipulation and analysis in Python.

The hash can be considered a pointer or direct reference into the underlying data structure, which makes lookup very fast — generally a Set lookup is a single operation. This is what makes it a great ...