Update app.py

app.py

@@ -4,6 +4,7 @@ import os
 # Add the current directory to the Python path
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
+# Import models
 from models.user_model import User
 from models.appointment_model import Appointment
 from models.prescription_model import Prescription
@@ -14,11 +15,11 @@ from models.medical_history_model import MedicalHistory
 DATA_DIR = 'data'
 
 # Define paths to each CSV file
-USER_CSV = f'{DATA_DIR}/users.csv'
-APPOINTMENT_CSV = f'{DATA_DIR}/appointments.csv'
-PRESCRIPTION_CSV = f'{DATA_DIR}/prescriptions.csv'
-REPORT_CSV = f'{DATA_DIR}/reports.csv'
-MEDICAL_HISTORY_CSV = f'{DATA_DIR}/medical_history.csv'
+USER_CSV = os.path.join(DATA_DIR, 'users.csv')
+APPOINTMENT_CSV = os.path.join(DATA_DIR, 'appointments.csv')
+PRESCRIPTION_CSV = os.path.join(DATA_DIR, 'prescriptions.csv')
+REPORT_CSV = os.path.join(DATA_DIR, 'reports.csv')
+MEDICAL_HISTORY_CSV = os.path.join(DATA_DIR, 'medical_history.csv')
 
 def load_all_data():
     # Load data from each model's CSV file