Most of the work published by Parul Johri is available on Github - https://github.com/paruljohri
Code associated with work published by the lab will be available here - https://github.com/JohriLab
If you're interested in calculating population-genetic statistics in sliding windows from .ms files using python, here are some scripts that you can use.
Here are scripts that use either a single or multiple .ms files and summarize a number of allele frequency and LD-based statistics:
Here is a script that will summarize FST-based statistics and also allele frequency-based statistics for each individual population for the same sliding windows: