Python Projects Attendence marker With Feature

The script  includes several key features:

 1. Time-Restricted Attendance Registration:

   - The script only allows attendance registration within a specified time window, defined by `start_time` and `end_time`. If the current time falls outside this range, the script prevents any further attendance entries and exits.

 2. Password-Based Subject Entry:

   - The user inputs a password that represents a subject name. This allows for a flexible way to manage attendance across multiple subjects without hardcoding the subjects into the script.

 3. Attendance Tracking:

   - The script tracks the number of times attendance has been recorded for each subject (`count`).

   - It logs the date, time, and day of each attendance entry in a list associated with the subject.

 4. Persistent Data Storage:

   - The attendance data is saved in a JSON file (`attendance3.json`). This ensures that the data is persistent across different runs of the script, allowing the user to maintain a continuous log of attendance over time.

 5. User-Friendly Exit Option:

   - The user can exit the script at any time by entering 'q', providing a convenient way to stop the script without needing to close the terminal or forcibly terminate the program.

 6. Automatic Data Management:

   - If the JSON file does not exist when the script is run, it automatically creates a new one, ensuring that the attendance data is always stored properly.

import json

from datetime import datetime, time

def load_attendance_data():

    try:

        with open('attendance3.json', 'r') as file:

            data = json.load(file)

    except FileNotFoundError:

        data = {}

    return data

def save_attendance_data(data):

    with open('attendance3.json', 'w') as file:

        json.dump(data, file)

def update_attendance(subject):

    data = load_attendance_data()

    current_time = datetime.now()

    date_str = current_time.strftime("%Y-%m-%d")

    time_str = current_time.strftime("%H:%M:%S")

    day_str = current_time.strftime("%A")

   

    if subject in data:

        data[subject]['count'] += 1

        data[subject]['attendance'].append({'date': date_str, 'time': time_str, 'day': day_str})

    else:

        data[subject] = {'count': 1, 'attendance': [{'date': date_str, 'time': time_str, 'day': day_str}]}

   

    save_attendance_data(data)

def is_within_time_limit():

    now = datetime.now().time()

    start_time = time(20, 24)  # Customizable start time

    end_time = time(21, 20)    # Customizable end time

    return start_time <= now <= end_time

def main():

    while True:

        if not is_within_time_limit():

            print("Attendance registration time is over.")

            break

        password = input("Enter password (or 'q' to quit): ")

        if password == 'q':

            break

        else:

            update_attendance(password)

if __name__ == "__main__":

main()