[brtknr]

It is not explained anywhere what the heat map is of… is it the age of the line or the number of commits? Is this configurable or what?

[mattip]

This project wraps py-heat https://github.com/csurfer/pyheat in a convenient to use ipython magic command. Pyheat presents a heat map of profiler output: i.e. the output of running your program and measuring the time to execute each line of python code. Pyheat in turn uses pprofile https://github.com/vpelletier/pprofile.

[brtknr]

I think it warrants an explaination of what py-heat is rather than assuming that the reader knows.

[slock83]

I used this tool a few month ago, as a way to quickly profile some slow running functions in one of my notebooks. The color is mapped to the cumulative run time of the line.