how to open apps using python

1import os
2
3os.system("program_name") # To open any program by their name recognized by windows
4
5# OR
6
7os.startfile("path to application or any file") # Open any program, text or office document

1dir = 'C:\\myprogram.exe'
2
3import os
4os.startfile(dir)
5os.system(dir)
6
7import subprocess
8subprocess.Popen([dir])
9subprocess.call(dir)

1import pyttsx3
2import subprocess 
3import os
4import time
5
6
7pyttsx3.speak("Hi user")
8time.sleep(2)
9pyttsx3.speak("you can open any apps in this coming list")
10time.sleep(3)
11print("You can open any app from this list:- ")  
12print("NOTEPAD \t GOOGLE\nVirtual Box \t unity \nEXIT ")
13
14while True:
15    # take input
16    
17    print("Chat with me which app to open : ", end='')
18    p = input().upper()
19    print(p)
20  
21    if ("NOTE" in p) or ("NOTES" in p) or ("NOTEPAD" in p) :
22        pyttsx3.speak("Opening , Notepad")
23        os.system("notepad.exe")
24        
25   
26  
27    elif ("GOOGLE" in p or "CHROME" in p):
28        pyttsx3.speak("opening chrome please wait")
29        time.sleep(3)
30        subprocess.call(['C:/Program Files (x86)/Google/Chrome/Application/chrome'])
31
32    
33    elif "UNITY" in p:
34        pyttsx3.speak("Opening unity")
35        subprocess.call(['file path of unity'])
36    
37        
38    elif ("EXIT" in p) or ("QUIT" in p) or ("CLOSE" in p):
39        print("thanks")
40        time.sleep(1)
41        pyttsx3.speak("Exiting this app thanks for using this app")
42        break
43  
44    else:
45        print("Is Invalid,Please Try Again")
46        pyttsx3.speak("its Invalid,Please try again ")
47