[Python] I made a Youtube Downloader with Tkinter.
1.First of all
Using Tkinter and Pytube, I made a GUI program to download Youtube videos.
2.1.pytyube
Please refer to the link below for how to install and use Pytube.
https://python-pytube.readthedocs.io/en/latest/
2.2. Introduction of Threading
Introduce Multi-threading to Freeze while maintaining GUI responsiveness.
2.2.1. Generation order
Design Threads in the following order. Call Back function of Start button → Thread generation method → Execution method
from threading import Thread
#Call Back function
def click_me(self):
self.create_thread()
#Thread generation method
def create_thread(self):
self.run_thread = Thread( target=self.method_in_a_thread )
self.run_thread.start()
print(self.run_thread)
#Execution method
def method_in_a_thread(self):
print('New Thread is Running.')
self.get_youtube( self.URL_name.get(), self.Folder_name.get())
2.2.2. Call
self.btn_Start = tk.Button(self.frame_form, text = 'Start')
self.btn_Start.configure( font= self.font02 )
self.btn_Start.grid( column=1, row=2, padx=20, pady=20, sticky= tk.W + tk.E )
self.btn_Start.configure( command = self.click_me)
3. How to use
Enter the URL of the Youtube video to download and specify the folder to download.
Then press the Start button.
Take, for example, the video of Mr. Samurai, who is making a leap forward in the commentary video of the NHK Taiga drama "Kirin ga Kuru".
https://www.youtube.com/watch?v=NYUYYMs-5UY
After downloading, it looks like it will be played on the player.
4. Summary
- Use a module called Pytube to download Youtube.
- Use Tkinter to create a GUI.
- Introduced Multi-threading to maintain GUI responsiveness.
5. Code
GUI_youtube.py
from pytube import YouTube
import tkinter as tk
from tkinter import Menu
from tkinter import messagebox as msg
from tkinter import font
from tkinter import filedialog
from tkinter import ttk
import os
from time import sleep
from threading import Thread
class Application(tk.Frame):
def __init__(self,master):
super().__init__(master)
self.pack()
self.master.geometry("800x500")
self.master.title("Youtube Downloader")
self.master.resizable(False, False)
# ---------------------------------------
# Favicon
# ---------------------------------------
self.iconfile = "./favicon.ico"
self.master.iconbitmap(default=self.iconfile)
self.create_widgets()
def create_widgets(self):
# ---------------------------------------
# font
# ---------------------------------------
self.font01 = font.Font(family="Helvetica", size=15, weight="normal")
self.font02 = font.Font(family='Helvetica', size=15, weight='bold')
self.font03 = font.Font(family='Helvetica', size=30, weight='bold')
# ---------------------------------------
# Menu
# ---------------------------------------
self.menu_bar = Menu( self.master )
self.master.config( menu=self.menu_bar )
self.file_menu = Menu( self.menu_bar, tearoff=0 )
self.file_menu.add_command( label='Exit', command=self._quit )
self.menu_bar.add_cascade( label='File', menu=self.file_menu )
# Add another help menu
self.help_menu = Menu( self.menu_bar, tearoff=0 )
self.help_menu.add_command( label='About', command=self._msgBox ) # Display messagebox when clicked
self.menu_bar.add_cascade( label='Help', menu=self.help_menu )
# ---------------------------------------
# Main Label
# ---------------------------------------
self.lbl_main = ttk.Label(self.master, text = 'Youtube Downloader', font=self.font03)
self.lbl_main.place(relx = 0.25, rely = 0.02)
# ---------------------------------------
# Frame : URL Input Form, Downloader Folder
# ---------------------------------------
self.frame_form = tk.Label(self.master)
self.frame_form.place(relx = 0.01 , rely = 0.25, height = 400 , width= 780 )
# ---------------------------------------
# URL Input Form
# ---------------------------------------
self.lbl_URL = ttk.Label(self.frame_form, text = 'URL')
self.lbl_URL.configure(font=self.font01)
self.lbl_URL.grid(column=0, row=0, padx = 20, pady= 20)
self.URL_name = tk.StringVar()
self.ent_URL = ttk.Entry(self.frame_form, textvariable = self.URL_name)
self.ent_URL.configure(width = 35, font= self.font01)
self.ent_URL.grid(column=1, row=0, padx = 20, pady= 20)
self.ent_URL.focus()
# ---------------------------------------
# Download Folder
# ---------------------------------------
self.Folder_name = tk.StringVar()
self.lbl_folder = ttk.Label( self.frame_form, text='Download\n Folder' )
self.lbl_folder.configure( font=self.font01 )
self.lbl_folder.grid( column=0, row=1, padx=20, pady=20 )
self.ent_Folder = ttk.Entry(self.frame_form,textvariable = self.Folder_name)
self.ent_Folder.configure(width =35,font= self.font01)
self.ent_Folder.grid(column=1, row=1, padx=20, pady=20)
self.btn_Folder = tk.Button( self.frame_form, text = 'Set Folder Path')
self.btn_Folder.configure(font = self.font02)
self.btn_Folder.grid(column=2, row=1, padx=20, pady=20, sticky=tk.W + tk.E )
self.btn_Folder.configure( command= self._get_Folder_Path)
# ---------------------------------------
# Start Button
# ---------------------------------------
self.btn_Start = tk.Button(self.frame_form, text = 'Start')
self.btn_Start.configure( font= self.font02 )
self.btn_Start.grid( column=1, row=2, padx=20, pady=20, sticky= tk.W + tk.E )
self.btn_Start.configure( command = self.click_me)
#
# ---------------------------------------
# Progress Bar
# ---------------------------------------
self.progress_bar = ttk.Progressbar(self.frame_form, orient='horizontal', length=286, mode = 'determinate')
self.progress_bar.grid(column=1, row=3, padx=20, pady=12,sticky=tk.W + tk.E)
# ---------------------------------------
# Create Callback Functions
# ---------------------------------------
#Python Treading to prevent GUI freezing.
def click_me(self):
self.create_thread()
def create_thread(self):
self.run_thread = Thread( target=self.method_in_a_thread )
self.run_thread.start()
print(self.run_thread)
def method_in_a_thread(self):
print('New Thread is Running.')
self.get_youtube( self.URL_name.get(), self.Folder_name.get())
# Display a Message Box
def _msgBox(self):
msg.showinfo('Program Information', 'Youtube Downloader with Tkinter \n (c) 2020 Tomomi Research Inc.')
# Youtube Download Function
def get_youtube(self, y_url, download_folder):
#Youtube Instance
yt = YouTube(y_url)
yt.streams.filter(progressive=True ,subtype='mp4' ).get_highest_resolution().download( download_folder )
#progress bar
self.progress_bar["maximum"] = 100
for i in range(101):
sleep(0.05)
self.progress_bar["value"]= i
self.progress_bar.update()
# Exit GUI cleanly
def _quit(self):
self.master.quit()
self.master.destroy()
exit()
# Get Folder Path
def _get_Folder_Path(self):
iDir = os.path.abspath(os.path.dirname(__file__))
folder_Path = filedialog.askdirectory(initialdir = iDir)
self.Folder_name.set(folder_Path)
def main():
root = tk.Tk()
app = Application(master=root)#Inherit
app.mainloop()
if __name__ == "__main__":
main()
Reference material
- Let's use pytube
- GUI tool for downloading videos from YouTube (Python) 3.Threading in Tkinter python improve the performance
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