input file validator

main.py

@@ -9,6 +9,7 @@ from app.util.globals import Error
 from app.util.courses import getCourses, writeCoursesToCSV
 from app.util.students import getStudents, writeStudentsToCSV
 from app.util.errorCalculator import writeErrorsToCSV
+from app.util.validator import validateInputData
 
 eel.init('template')
   
@@ -49,6 +50,10 @@ def start(
   block_class_limit = int(block_class_limit)
   total_blocks      = int(total_blocks)
 
+  eel.post_data('Validating input file...')
+  validateErr = validateInputData(raw_data_dir)
+  if validateErr is not None: return validateErr.__dict__
+
   # call pre-algorithm functions read raw data into a processable format
   eel.post_data('Collecting student information...')
   students = getStudents(