diff --git a/server/authentication.py b/server/authentication.py
index 5cba7fb..f1ceec3 100644
--- a/server/authentication.py
+++ b/server/authentication.py
@@ -1,4 +1,4 @@
-import os,sys
+import os, sys
 from base64 import b64encode
 from Crypto.Hash import SHA256
 from Crypto.Protocol.KDF import bcrypt, bcrypt_check
@@ -9,10 +9,11 @@ import logging
 auth_logger = logging.getLogger('AUTH APPLICATION ')
 auth_logger.root.setLevel(logging.INFO)
 
+
 class Authetication:
     ABSOLUTE_PATH = os.path.abspath(os.path.dirname(sys.argv[0]))
     HOME_DIRECTORY_LOCATION = ABSOLUTE_PATH + "\\home"
-    CONFIG_DIRECTORY_LOCATION = ABSOLUTE_PATH+ "\\config"
+    CONFIG_DIRECTORY_LOCATION = ABSOLUTE_PATH + "\\config"
     USER_INDEX = 0
 
     def __init__(self):
@@ -22,14 +23,14 @@ class Authetication:
         if not os.path.isdir(self.CONFIG_DIRECTORY_LOCATION):
             os.mkdir(self.CONFIG_DIRECTORY_LOCATION)
 
-        if not os.path.isfile(self.CONFIG_DIRECTORY_LOCATION + "\\config.txt") or os.stat(self.CONFIG_DIRECTORY_LOCATION + "\\config.txt").st_size == 0:
+        if not os.path.isfile(self.CONFIG_DIRECTORY_LOCATION + "\\config.txt") or os.stat(
+                self.CONFIG_DIRECTORY_LOCATION + "\\config.txt").st_size == 0:
             data = {}
             data['index'] = 0
             data['user'] = []
             with open(self.CONFIG_DIRECTORY_LOCATION + "\\config.txt", 'w+') as outfile:
                 json.dump(data, outfile)
 
-
     def login(self, username, password):
         with open(Authetication.CONFIG_DIRECTORY_LOCATION + '\\config.txt') as json_file:
             data = json.load(json_file)
@@ -43,10 +44,9 @@ class Authetication:
                 except ValueError:
                     auth_logger.debug("User NOT logged in: " + username)
                     return ''
-        auth_logger.debug("User logged in: "+username)
+        auth_logger.debug("User logged in: " + username)
         return user['homeDir']
 
-
     def checkUserExists(self, username):
         with open(Authetication.CONFIG_DIRECTORY_LOCATION + '\\config.txt') as json_file:
             data = json.load(json_file)
@@ -57,16 +57,13 @@ class Authetication:
         return False
 
     def initConfig(self):
-        data = {}
-        data['index'] = 0
-        data['user'] = []
+        data = {'index': 0, 'user': []}
         with open(self.CONFIG_DIRECTORY_LOCATION + "\\config.txt", 'w+') as outfile:
             json.dump(data, outfile)
 
         shutil.rmtree(self.HOME_DIRECTORY_LOCATION)
         os.mkdir(self.HOME_DIRECTORY_LOCATION)
 
-
     def saveUser(self, username, password):
         bytePass = password.encode('utf-8')
         b64pwd = b64encode(SHA256.new(bytePass).digest())
@@ -78,7 +75,7 @@ class Authetication:
         user = {
             'username': username,
             'password': bcrypt_hash.decode('utf-8'),
-            'homeDir':  data['index']+1
+            'homeDir': data['index'] + 1
         }
 
         data['index'] = data['index'] + 1
@@ -97,7 +94,3 @@ class Authetication:
                 auth_logger.debug("User NOT saved! Home directory already exists")
 
             return True
-
-
-
-
diff --git a/server/authentication_test.py b/server/authentication_test.py
index 2027d95..e0ab9ae 100644
--- a/server/authentication_test.py
+++ b/server/authentication_test.py
@@ -2,10 +2,10 @@ from authentication import Authetication
 import json
 import logging
 
-
 test_logger = logging.getLogger('TEST ')
 test_logger.root.setLevel(logging.INFO)
 
+
 def testSaveUser(username, password):
     logging.info('STARTING SAVE USER TEST')
     auth = Authetication()
@@ -61,7 +61,8 @@ def testUserExists(username, password):
     else:
         logging.info('TEST 2 --> User exists with INVALID user :: PASSED')
 
+
 if __name__ == '__main__':
-    testSaveUser("Diósbejglia","Diósbejgli")
-    testAuth("Diósbejglia","Diósbejgli")
-    testUserExists("Diósbejglia","Diósbejgli")
\ No newline at end of file
+    testSaveUser("Diósbejglia", "Diósbejgli")
+    testAuth("Diósbejglia", "Diósbejgli")
+    testUserExists("Diósbejglia", "Diósbejgli")