def __str__(self): return f"self.student_id | self.name | Age: self.age | Grade: self.grade" class StudentManager: """Manages collection of students"""
""" File: student_manager.py Description: A simple student management system demonstrating Python in NetBeans Author: NetBeans Python Example """ import json from datetime import datetime python in netbeans
def to_dict(self): """Convert student object to dictionary for JSON serialization""" return 'student_id': self.student_id, 'name': self.name, 'age': self.age, 'grade': self.grade, 'created_at': self.created_at.isoformat() def __str__(self): return f"self
def save_to_file(self, filename='students.json'): """Save student data to JSON file""" data = [student.to_dict() for student in self.students.values()] with open(filename, 'w') as f: json.dump(data, f, indent=2) print(f"✓ Data saved to filename") 'w') as f: json.dump(data