Use interactive mode and single window.

fosdem_video_progress.py

@@ -41,6 +41,10 @@ def main():
 		print("New time series.")
 		ts = TimeSeries(states=set(), jobstates=set(), data=dict())
 
+	plt.ion()
+	plt.clf()
+	plt.show(block=False)
+	
 	while True:
 		time, states, jobstates = get_data()
 		print(f'data got at {time}')
@@ -56,8 +60,6 @@ def main():
 		print('pickle saved')
 
 		# Show the plot
-		plt.close()
-		plt.clf()
 		x = sorted(ts.data.keys()) # times
 		states = sorted(ts.states)
 		ys = [tuple(ts.data[time][0].get(state, 0) for state in states) for time in x] # numbers per state
@@ -67,7 +69,6 @@ def main():
 		plt.stackplot(x, ys, labels=states)
 		plt.legend(loc='upper left')
 		print('showing plot')
-		plt.show(block=False)
 
 		plt.pause(poll_rate)