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")
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() python in netbeans
def find_student(self, student_id): """Find a student by ID""" return self.students.get(student_id) def save_to_file(self, filename='students
# Try to load existing data manager.load_from_file() 'w') as f: json.dump(data
""" File: student_manager.py Description: A simple student management system demonstrating Python in NetBeans Author: NetBeans Python Example """ import json from datetime import datetime
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