Network Speed Monitor

 pip install speedtest-cli matplotlib tk


import speedtest
import tkinter as tk
from tkinter import ttk
import threading
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg

# Function to test internet speed
def test_speed():
    st = speedtest.Speedtest()
    st.get_best_server()
    
    download_speed = round(st.download() / 1_000_000, 2)  # Convert to Mbps
    upload_speed = round(st.upload() / 1_000_000, 2)  # Convert to Mbps

    return download_speed, upload_speed

# Function to update the speed in GUI
def update_speed():
    global speeds_download, speeds_upload
    
    while True:
        download, upload = test_speed()
        speeds_download.append(download)
        speeds_upload.append(upload)

        lbl_download.config(text=f"Download Speed: {download} Mbps")
        lbl_upload.config(text=f"Upload Speed: {upload} Mbps")

        update_graph()
        root.update_idletasks()

# Function to update the speed graph
def update_graph():
    ax.clear()
    ax.plot(speeds_download, label="Download Speed (Mbps)", color="blue")
    ax.plot(speeds_upload, label="Upload Speed (Mbps)", color="red")
    
    ax.set_title("Network Speed Over Time")
    ax.set_xlabel("Test Count")
    ax.set_ylabel("Speed (Mbps)")
    ax.legend()
    ax.grid()

    canvas.draw()

# Tkinter GUI setup
root = tk.Tk()
root.title("Network Speed Monitor 🌐")
root.geometry("500x500")

lbl_title = tk.Label(root, text="📡 Network Speed Monitor", font=("Arial", 14, "bold"))
lbl_title.pack(pady=10)

lbl_download = tk.Label(root, text="Download Speed: -- Mbps", font=("Arial", 12))
lbl_download.pack(pady=5)

lbl_upload = tk.Label(root, text="Upload Speed: -- Mbps", font=("Arial", 12))
lbl_upload.pack(pady=5)

# Matplotlib graph setup
fig, ax = plt.subplots(figsize=(5, 3))
speeds_download = []
speeds_upload = []

canvas = FigureCanvasTkAgg(fig, master=root)
canvas.get_tk_widget().pack()

# Run speed test in a separate thread
threading.Thread(target=update_speed, daemon=True).start()

root.mainloop()

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