Typo pep8

src/auth.py

@@ -2,6 +2,7 @@ from tools import *
 import getpass
 import os
 
+
 def auth_method(c):
     if c.contains_switches('auth-scrypt'):
         return auth_by_scrypt()
@@ -12,16 +13,18 @@ def auth_method(c):
     print("Error: no authentication method")
     exit()
 
+
 def generate_auth_file(c):
     if c.contains_definitions('file'):
         file = c.get_definition('file')
     else:
         file = "authfile"
     seed = auth_method(c)
-    with open(file, "w") as f: 
+    with open(file, "w") as f:
         f.write(seed)
     print("Authfile generated for the public key: ", get_publickey_from_seed(seed))
 
+
 def auth_by_auth_file(c):
     if c.contains_definitions('file'):
         file = c.get_definition('file')
@@ -30,14 +33,15 @@ def auth_by_auth_file(c):
     if not os.path.isfile(file):
         print("Error: the file \"" + file + "\" does not exist")
         exit()
-    with open(file) as f: 
-        seed = f.read() 
+    with open(file) as f:
+        seed = f.read()
     regex = re.compile('^[0-9a-fA-F]{64}$')
     if not re.search(regex, seed):
         print("Error: the format of the file is invalid")
         exit()
     return seed
 
+
 def auth_by_seed():
     seed = input("Please enter your seed on hex format: ")
     regex = re.compile('^[0-9a-fA-F]{64}$')
@@ -50,15 +54,14 @@ def auth_by_seed():
 def auth_by_scrypt():
     salt = input("Please enter your Scrypt Salt (Secret identifier): ")
     password = getpass.getpass("Please enter your Scrypt password (masked): ")
-    scrypt_param = input("Please enter your Scrypt parameters (N,r,p): [4096,16,1]")
+    scrypt_param = input("Please enter your Scrypt parameters (N,r,p): default [4096,16,1]: ")
     if not scrypt_param:
         scrypt_param = "4096,16,1"
-    scrypt_param_splited= scrypt_param.split(",")
+    scrypt_param_splited = scrypt_param.split(",")
     n = int(scrypt_param_splited[0])
     r = int(scrypt_param_splited[1])
     p = int(scrypt_param_splited[2])
     if (n <= 0 or n > 65536 or r <= 0 or r > 512 or p <= 0 or p > 32):
         print("Error: the values of Scrypt parameters are not good")
 
-    seed = get_seed_from_scrypt(salt, password, n, r, p)
-    return seed
+    return get_seed_from_scrypt(salt, password, n, r, p)