diff --git a/src/app.py b/src/app.py
index 3d4b29b..6593088 100644
--- a/src/app.py
+++ b/src/app.py
@@ -4,6 +4,7 @@
 
 app = Flask(__name__)
 
+
 def get_students_from_csv(path):
     student_data = pd.read_csv(path)
     students = []
@@ -17,12 +18,14 @@ def index():
     title = "Software Engineering"
     return render_template("form.html", title=title)
 
+
 @app.route("/groups", methods=['POST'])
 def groups():
     title = "Groups"
     students = get_students_from_csv('temp/students.csv')
     return render_template("groups.html", title=title, students=students)
 
+
 @app.route('/send', methods=['POST'])
 def send():
     csv_content = request.files['csv_file']
diff --git a/src/helpers.py b/src/helpers.py
index 6ebbc69..7dbbe92 100644
--- a/src/helpers.py
+++ b/src/helpers.py
@@ -7,13 +7,13 @@
 class Helper:
     def __init__(self):
         self.students = None
-    
+
     def setHelperStudents(self, students):
         self.students = students
 
     def get_students_from_csv(self, path):
         student_data = pd.read_csv(path)
-        self.students =  [
+        self.students = [
             Student(
                 row.firstname,
                 row.lastname,
@@ -36,7 +36,7 @@ def make_group(self, students_in_group, group_size, group_number):
 
     def print_students(self):
         for student in self.students:
-            x = student.name_print() 
+            x = student.name_print()
             print(x)
 
     def get_student_by_GUID(self, GUID):
@@ -47,7 +47,6 @@ def get_student_by_id(self, id):
 
     def get_students_by_name(self, given_name):
         return [student for student in self.students if student.given_name == given_name]
-    
+
     def get_groupless_students(self):
         return [student for student in self.students if not student.group_number]
-
diff --git a/src/main.py b/src/main.py
index e78e00f..0f88f45 100644
--- a/src/main.py
+++ b/src/main.py
@@ -3,6 +3,7 @@
 from src.student import Student
 from src.helpers import Helper
 
+
 def main():
     h = Helper()
     file_path = input("Give the path of the file: ")
diff --git a/src/student.py b/src/student.py
index 89ebe24..fa49c06 100644
--- a/src/student.py
+++ b/src/student.py
@@ -14,6 +14,6 @@ def add_to_group(self, group_number):
 
     def info(self):
         return "{} {} {} \t {} \t {}".format(self.number, self.given_name, self.surname, self.email, self.gender)
-    
+
     def name_print(self):
-        return "{} {}".format(self.given_name, self.surname)
\ No newline at end of file
+        return "{} {}".format(self.given_name, self.surname)
diff --git a/test/test_helpers.py b/test/test_helpers.py
index ff34739..fe77726 100644
--- a/test/test_helpers.py
+++ b/test/test_helpers.py
@@ -4,6 +4,7 @@
 from src.student import Student
 from src.helpers import Helper
 
+
 @pytest.fixture()
 def sut():
     sut0 = Student(0, "m", "firstname", "lastname", "f.n@mail.com", "test12345")
@@ -13,6 +14,7 @@ def sut():
     sut = [sut0, sut1, sut2, sut3]
     yield sut
 
+
 class TestResource:
     def test_make_group(self, sut):
         helper = Helper()
@@ -20,7 +22,8 @@ def test_make_group(self, sut):
         thisGroup = helper.make_group(sut, 4, 1)
         for student in sut:
             assert student.group_number == 1
-        
+
+
 def test_print_students(capfd):
     sut0 = Student(0, "m", "firstname", "lastname", "f.n@mail.com", "test12345")
     sut1 = Student(1, "m", "firstname1", "lastname1", "f1.n1@mail1.com1", "test1")
@@ -31,4 +34,4 @@ def test_print_students(capfd):
     helper.setHelperStudents(sut)
     helper.print_students()
     out, err = capfd.readouterr()
-    assert  out== "firstname lastname\nfirstname1 lastname1\nfirstname2 lastname2\nfirstname3 lastname3\n"
\ No newline at end of file
+    assert out == "firstname lastname\nfirstname1 lastname1\nfirstname2 lastname2\nfirstname3 lastname3\n"
diff --git a/test/test_student.py b/test/test_student.py
index ed55585..6da6770 100644
--- a/test/test_student.py
+++ b/test/test_student.py
@@ -21,11 +21,11 @@ def test_studentWithGroupHasGroupNumber(self, sut):
         helper.setHelperStudents(student_list)
         helper.make_group(student_list, group_size, 1)
         assert sut.group_number == 1
-    
+
     def test_studentInfoOutput(self, sut):
         infoOutput = sut.info()
         assert infoOutput == "0 firstname lastname \t f.n@mail.com \t m"
-    
+
     def test_name_print(self, sut):
         simple_print = sut.name_print()
         assert simple_print == "firstname lastname"