pyflux has 102K monthly downloads and 2K GitHub stars. Version 0.4.16, first published in 2016.
It is showing limited recent maintenance under a permissive license, last released in Nov 2017.
It is used by 1 tracked package, including autotime.
GitHub topics include statistics and time-series.
Package Insights
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100