Initial commit

file.py

+class Student:
+    def __init__(self, student_id, name, age, grade):
+        self.student_id = student_id    
+        self.name = name
+        self.age = age
+        self.grade = grade
+
+    def __str__(self):
+        return f"ID:{self.student_id}, Name:{self.name}, Age:{self.age}, Grade:{self.grade}"
+
+
+class smanager:
+    def __init__(self):
+        self.students = []
+
+    def add_student(self, student):
+        self.students.append(student)
+
+    def view_students(self):
+        for student in self.students:
+            print(student)
+
+    def find_student(self, student_id):
+        for student in self.students:
+            if student.student_id == student_id:
+                return student
+        return None
+
+    def update_student(self, student_id, name=None, age=None, grade=None):
+        student = self.find_student(student_id)
+        if student:
+            if name: student.name = name
+            if age: student.age = age
+            if grade: student.grade = grade
+            print("Student updated")
+        else:
+            print("Student not found")
+
+    def delete_student(self, student_id):
+        student = self.find_student(student_id)
+        if student:
+            self.students.remove(student)
+            print("Student deleted successfully")
+        else:
+            print("Student not found")
+
+
+def main():
+    manager = smanager()
+
+    while True:
+        print("\n--- Student Management System ---")
+        print("1. Add Student")
+        print("2. View All Students")
+        print("3. Search Student by ID")
+        print("4. Update Student")
+        print("5. Delete Student")
+        print("6. Exit")
+
+        choice = input("Enter choice: ")
+
+        if choice == "1":
+            sid = input("ID: ")
+            name = input("Name: ")
+            age = int(input("Age: "))
+            grade = input("Grade: ")
+            student = Student(sid, name, age, grade)
+            manager.add_student(student)
+            print("Student added successfully!")
+
+        elif choice == "2":
+            manager.view_students()
+
+        elif choice == "3":
+            sid = input("Enter Student ID to search: ")
+            student = manager.find_student(sid)
+            print(student if student else "Student not found.")
+
+        elif choice == "4":
+            sid = input("ID to update: ")
+            name = input("New Name (or leave blank): ")
+            age = input("New Age (or leave blank): ")
+            grade = input("New Grade (or leave blank): ")
+
+            manager.update_student(
+                sid,
+                name=name if name else None,
+                age=int(age) if age else None,
+                grade=grade if grade else None
+            )
+
+        elif choice == "5":
+            sid = input("Enter ID to delete: ")
+            manager.delete_student(sid)
+
+        elif choice == "6":
+            print("Exiting!")
+            break
+
+        else:
+            print("Invalid choice. Try again.")
+
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file