Python Electronic Attendance System Tutorial with Complete Source Code

This tutorial guides readers through creating a simple electronic attendance system using Python. The project assumes a CSV file stu_infos.csv containing student IDs, names, and passwords, and another CSV attendance.csv to store attendance records.

Module imports :

import csv<br/>import time<br/>student_infos = []

Loading student data – the load_stu_info() function reads stu_infos.csv , builds a list of dictionaries (one per student), and stores it in student_infos :

def load_stu_info():
    """
    加载学生信息
    从stu_infos.csv文件中加载数据
    :return: 无
    """
    with open(r"stu_infos.csv", encoding='utf-8-sig') as file:
        f_csv = csv.reader(file)
        header = next(f_csv)
        for row in f_csv:
            student_info = {}
            for index in range(3):
                student_info[header[index]] = row[index]
            student_infos.append(student_info)

User login – the login() function allows up to three attempts, checking the entered ID and password against student_infos and returning a success flag and the student number:

def login():
    """
    用户使用学号和密码进行登录
    最多让用户登录三次，如果连续三次都登录失败（用户名或者密码错误），只要密码和用户都正确表示登录成功
    :return:登录成功返回True和学号，三次都登录失败返回False和None
    """
    retry_time = 0
    while retry_time < 3:
        user_no = input('请输入登录账号：')
        password = input('请输入密码：')
        for i in student_infos:
            if i['no'] == user_no and i['password'] == password:
                return True, user_no
        print('用户名或者密码错误！！！请重新输入。')
        retry_time += 1
    else:
        return False, None

Recording attendance – the add(user_no) function finds the student's name, asks the user to choose an attendance status, and appends a new row to attendance.csv :

def add(user_no):
    for x in student_infos:
        if user_no == x['no']:
            name = x['name']
            break
    times = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
    choices = ['出勤', '迟到', '请假', '缺勤']
    a = int(input("\t该学生出勤情况：1-出勤\t2-迟到\t3-请假\t4-缺勤:"))
    if a == 1:
        data = choices[0]
    elif a == 2:
        data = choices[1]
    elif a == 3:
        data = choices[2]
    else:
        data = choices[3]
    with open(r"attendance.csv", 'a+', newline='', encoding='utf-8') as f:
        wf = csv.writer(f)
        wf.writerow([user_no, name, times, data])  # 写入一行数据
        print("{}同学{}数据已经写入成功！操作时间是{}".format(name, data, times))

Querying attendance records – the select() function loads attendance.csv , prompts for a name, and prints all matching records:

def select():
    student = []
    with open(r"attendance.csv", encoding='utf-8-sig') as file:
        f_csv = csv.reader(file)
        header = next(f_csv)
        for row in f_csv:
            students = {}
            for index in range(4):
                students[header[index]] = row[index]
            student.append(students)
    name = input("请输入你需要查找的姓名：")
    print("  学号\t\t姓名\t\t操作时间\t\t出勤状态")
    for a in student:
        if a['name'] == name:
            print(a['no'] + '\t' + a['name'] + '\t' + a['time'] + '\t\t' + a['state'])
        else:
            print("无此人！！！")
            break

Main program (main.py) – imports all functions, loads student data, performs login, records attendance, and optionally runs the query:

from student.stu_attendance import *
if __name__ == '__main__':
    load_stu_info()
    success, stu_no = login()
    print(stu_no)
    if success:
        print('登录成功！')
        add(stu_no)
        q = int(input("你想要查询出勤数据吗？\tyes(1)--no(0)"))
        if q == 1:
            select()
        else:
            print("欢迎下次登录电子考勤系统")
    else:
        print('登录失败')

The article also includes screenshots of the program’s execution, a QR code for a free Python public‑course resource, and links to related Python tutorials, but the core educational content is the complete, runnable attendance‑system code and its step‑by‑step explanation.