zmiany w zapisywaniu i stałe na poziomie klasy

dzien8/emps3_dodatki/employees.py

 class Employee:
+    nazwy_kolumn = ('employee_id', 'first_name', 'last_name', 'job_title', 'salary', 'hire_date',
+                 'department_name', 'address', 'postal_code', 'city', 'country')
+
+    SEP = ';'
+
     def __init__(self, employee_id, first_name, last_name, job_title, salary, hire_date, department_name, address, postal_code, city, country):
         self.employee_id = int(employee_id)
         self.first_name = first_name
@@ -20,13 +25,11 @@ class Employee:
 def read_csv(file_path='emps.csv'):
     with open(file_path, mode='r', encoding='utf-8') as file:
         file.readline()
-        return [Employee(*(line.strip().split(';'))) for line in file]
+        return [Employee(*(line.strip().split(Employee.SEP))) for line in file]
 
 
 def write_csv(emps, sciezka):
-    with open(sciezka, mode='w', encoding='utf-8') as plik:
-        plik.write('employee_id;first_name;last_name;job_title;salary;hire_date;department_name;address;postal_code;city;country\n')
+    with open(sciezka, mode='w', encoding='utf-8') as file:
+        print(*Employee.nazwy_kolumn, sep=Employee.SEP, file=file)
         for emp in emps:
-            print(emp.employee_id, emp.first_name, emp.last_name, emp.job_title, emp.salary,
-                  emp.hire_date, emp.department_name, emp.address, emp.postal_code, emp.city, emp.country,
-                  sep=';', file=plik)
+            print(*emp.__dict__.values(), sep=Employee.SEP, file=file)