As reported by @WeatherGod in #4738 and #4878 there may be a memory leak somewhere in the mouse hover code in NavigationToolbar2.mouse_over
Not clear if #4878 fixed it but it seems unlikely
My (hopeful) guess as to what is going on there is that @WeatherGod was using data from netcdf4 object and the random access of pulling out a single pixel is causing it to cache many chunks of the image.
@WeatherGod Can you make a reproducible example?
Labeling this as not a blocker for an RC because we don't have a reproducible example.
Closing for lack of reproducible example and lack of activity and possibly being due to netcdf4 caching which is unrelated to matplotlib.
Activity
tacaswell commented on Aug 16, 2015
My (hopeful) guess as to what is going on there is that @WeatherGod was using data from netcdf4 object and the random access of pulling out a single pixel is causing it to cache many chunks of the image.
@WeatherGod Can you make a reproducible example?
tacaswell commented on Aug 22, 2015
Labeling this as not a blocker for an RC because we don't have a reproducible example.
anntzer commented on Jun 29, 2017
Closing for lack of reproducible example and lack of activity and possibly being due to netcdf4 caching which is unrelated to matplotlib.