Update app.py

app.py

@@ -21,6 +21,7 @@ from shiny import App, reactive, ui, render
 from shiny.ui import h2, tags
 # from functions.PitchPlotFunctions import *
 import functions.PitchPlotFunctions as ppf
+import matplotlib
 ploter = ppf.PitchPlotFunctions()
 from shiny.plotutils import brushed_points
 # from pytabulator import TableOptions, Tabulator, output_tabulator, render_tabulator, theme