Python to Set an Alarm and Play Music after Time with Full Source Code For Beginners

• This script lets you set an alarm and plays your selected music after the selected time. 
• THIS SCRIPT ONLY WORKS ON WINDOWS

Running the Script:

python alarm.py
Code language: CSS (css)

Source Code:

alarm.py

import datetime
import os
import re
import subprocess


def rename_files_with_whitespaces(cd, files, extra_path=""):
    for file in files:
        if " " in file:
            renamed_file = file.replace(" ", "_")
            os.rename(os.path.join(cd, extra_path, file), os.path.join(cd, extra_path, renamed_file))


def clean_filename(file):
    return ' '.join(map(str.capitalize, file[:-4].split('_')))


def set_alarm():
    stop = False
    error = True
    while error:
        user_set_time = ":".join(map(lambda x: str(x).zfill(2), input("\nSet the alarm time (e.g. 01:10): ").split(":")))

        if re.match(r"^[0-9]{2}:[0-9]{2}$", user_set_time):
            playback_time = f"{user_set_time}:00.000000"
            error = False
        else:
            print(">>> Error: Time format invalid! Please try again!\n")
            
    cd = os.path.dirname(os.path.realpath(__file__))
    musics_path = os.path.join(cd, "musics")
    
    rename_files_with_whitespaces(cd, os.listdir(musics_path), "musics")

    musics = os.listdir(musics_path)
    if len(musics) < 1:
        print(">>> Error: No music in the musics folder! Please add music first!\n")
        exit()

    elif len(musics) == 1:
        print(">> Alarm music has been set default --> " + clean_filename(musics[0]))
        selected_music = musics[0]
    
    else:
        error = True
        while error:
            try:
                print("\nSelect any alarm music:\n")
                for i in range(1, len(musics) + 1):
                    print(f"{i}. {clean_filename(musics[i - 1])}")
                    
                user_input = int(input("\nEnter the index of the listed musics (e.g. 1): "))
                selected_music = musics[user_input - 1]
                print(">> Alarm music has been set --> "+ clean_filename(selected_music))
                error = False

            except:
                print(">>> Error: Invalid Index! Please try again!\n")
    
    print(f"\n>>> Alarm has been set successfully for {user_set_time}! Please dont close the program! <<<")
    while stop == False:
        current_time = str(datetime.datetime.now().time())
        if current_time >= playback_time:
            stop = True
            subprocess.run(('cmd', '/C', 'start', f"{cd}\\musics\\{selected_music}"))
            print(">>> Alarm ringing! Closing the program!! Bye Bye!!! <<<")

def display_header(header):
    print("")
    print("###########################".center(os.get_terminal_size().columns))
    print(f"###### {header} ######".center(os.get_terminal_size().columns))
    print("###########################".center(os.get_terminal_size().columns))

if __name__ == "__main__":
    display_header("Alarm Program")
    set_alarm()
Code language: PHP (php)

Output:

###########################                                                                                           
###### Alarm Program ######                                                                                           
###########################                                                                                           

Set the alarm time (e.g. 01:10): 00:01

Select any alarm music:

1. The Four Seasons
2. Carnival
3. Renaissance
4. Variations
5. Dreamy Nights
6. Lakhau Hajarau
7. New Horizon
8. Crusade
9. Mozart Wakes
10. Morning Calm


Enter the index of the listed musics (e.g. 1): 1
>> Alarm music has been set --> The Four Seasons

>>> Alarm has been set successfully for 00:01! Please dont close the program! <<<
Code language: CSS (css)