Using matltlib displays a new window named Figure 1 (not responding)

Question

from pymavlink import mavutil
import matplotlib.pyplot as plt

plt.switch_backend('TkAgg')

# Connect to Mission Planner

master = mavutil.mavlink_connection('udpin:localhost:14550')

# Create empty lists to store data

timestamps = \[\]
latitudes = \[\]
longitudes = \[\]

# Set up the plot

plt.figure()

fig, ax = plt.subplots()
line, = ax.plot(\[\], \[\], 'b-')
ax.set_xlabel('Time')
ax.set_ylabel('Latitude')
plt.grid()
plt.draw() # draw the plot

# Function to update plot

def update_plot(timestamps, latitudes):
line.set_xdata(timestamps)
line.set_ydata(latitudes)
ax.relim()
ax.autoscale_view()
fig.canvas.flush_events()
fig.canvas.blit() # or draw()
fig.canvas.start_event_loop(0.001) #1 ms seems enough

# Main loop

while True:

    # Wait for a message
    msg = master.recv_match()
    if msg is not None:
    
        # Check for GPS message
        if msg.get_type() == 'GLOBAL_POSITION_INT':
    
            # Extract latitude and longitude
            lat = msg.lat / 1e7
            lon = msg.lon / 1e7
            timestamps.append(msg.time_boot_ms)
            latitudes.append(lat)
            
            # Update plot
            update_plot(timestamps, latitudes)

print(f"GPS Position: Latt={lat:.6f}, Lonn={lon:.6f}")

That is my code, I updated matplotlib and i changed the backend but it is always not responding. please help me resolve this problem . It's frustrating when even after updating matplotlib and changing the backend, my plot remains unresponsive.