Make your First app with Python

When you are just starting to write code, the amount of dopamine boost you get from printing a simple “Hello World” in the terminal is just super awesome, but you need to step up your game so lets make a really really simple yet cool GUI with python.

In this project we’ll make a simple youtube video downloader using Tkinter and the pytube library.

For this we would need to get the libraries.

1. Pytube — pip install pytube
2. Tkinter — it already comes with python

that’s it!

1. let’s import the things we need to, in order to get started!

import tkinter as tk #importing tkinter as tk
import tkinter.ttk as ttk 
from pytube import YouTube

global yt #making it global so all the functions can use it

2. Now, let’s start building the UI.

root = tk.Tk()
root.title('YouTube Downloader')
root.geometry("450x650")
root.iconbitmap("D:\\Python_Projects\\Pytube\\youtube_logo_icon_147199.ico")

url_label = tk.Label(root, text="Enter URL")
url_label.grid(row=0, column=0, padx=2)
url_entry = tk.Entry(root, width=50)
url_entry.grid(row=0, column=1, pady=20, padx=5)
btn_show_size = tk.Button(root, text="Show Size", command=download_17_3gp_size)
btn_show_size.grid(row=3, column=3)

3. Now that’s done it’s time to add some functionality

def download_18_mp4_360p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(18)
    size = (stream.filesize / 1048576)
    final_size = str(round(size, 2)) + " "+"Mbs"
    label = tk.Label(root, text=final_size, font=("Ubuntu", 20))
    label.grid(row=8, column=1, pady=0)

btn_show_size = tk.Button(root, text="Show Size", command=download_18_mp4_360p)
btn_show_size.grid(row=4, column=3)

make a function so we could download videos in different quality, as above we’re making a function to download the video in 3GP quality.

4. Similarly we can make different functions for different qualities.

def download_22_mp4_720p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(22)
    size = (stream.filesize / 1048576)
    final_size = str(round(size, 2)) + " "+"Mbs"
    label = tk.Label(root, text=final_size, font=("Ubuntu", 20))
    label.grid(row=8, column=1, pady=0)

btn_show_size = tk.Button(root, text="Show Size", command=download_22_mp4_720p)
btn_show_size.grid(row=5, column=3)

def download_137_mp4_1080p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(137)
    size = (stream.filesize / 1048576)
    final_size = str(round(size, 2)) + " "+"Mbs"
    label = tk.Label(root, text=final_size, font=("Ubuntu", 20))
    label.grid(row=8, column=1, pady=0)

btn_show_size = tk.Button(root, text="Show Size",
                          command=download_137_mp4_1080p)
btn_show_size.grid(row=6, column=3)
# The quality for the video

# lets define the functions
def download_17_3gp():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(17)
    # we created  a new directory in D drive
    stream.download(output_path="D:\\Downloads")
    dwnld_confirm = tk.Label(root, text="Downloaded",
                             font=("Ubuntu", 20), fg="red")
    dwnld_confirm.grid(row=3, column=2)

def download_18_mp4_360p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(18)
    # we created  a new directory in D drive
    stream.download(output_path="D:\\Downloads")
    dwnld_confirm = tk.Label(root, text="Downloaded",
                             font=("Ubuntu", 20), fg="red")
    dwnld_confirm.grid(row=4, column=2)

def download_22_mp4_720p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(22)
    # we created  a new directory in D drive
    stream.download(output_path="D:\\Downloads")
    dwnld_confirm = tk.Label(root, text="Downloaded",
                             font=("Ubuntu", 20), fg="red")
    dwnld_confirm.grid(row=5, column=2)

def download_137_mp4_1080p():
    yt = YouTube(url_entry.get())
    stream = yt.streams.get_by_itag(137)
    # we created  a new directory in D drive
    stream.download(output_path="D:\\Downloads")
    dwnld_confirm = tk.Label(root, text="Downloaded",
                             font=("Ubuntu", 20), fg="red")
    dwnld_confirm.grid(row=6, column=2)

5. Finally let’s make the download buttons.

btn_17 = tk.Button(root, text='Download 3gp', bg='black',
                   fg='white', command=download_17_3gp)
btn_17.grid(row=3, column=1, pady=5)

btn_18 = tk.Button(root, text='Download Mp4 360p', bg='black',
                   fg='white', command=download_18_mp4_360p)
btn_18.grid(row=4, column=1, pady=5)

btn_22 = tk.Button(root, text='Download Mp4 720p', bg='black',
                   fg='white', command=download_22_mp4_720p)
btn_22.grid(row=5, column=1, pady=5)
btn_137 = tk.Button(root, text='Download Mp4 1080p', bg='black',
                    fg='white', command=download_137_mp4_1080p)
btn_137.grid(row=6, column=1, pady=5)
btn_quit = tk.Button(root, text='Quit App!', bg='red', fg='white', font=(
    "Ubuntu", 20), command=lambda: root.destroy())
btn_quit.grid(row=7, column=1, pady=150, ipadx=20, ipady=20)

6. Keep it Running until we press the quit button

# keep it running
root.mainloop()

mainloop keeps the code running until we terminate the application.

I hope you like the post! :)