Linting and hints

django_q/core_signing.py

@@ -2,8 +2,15 @@ import datetime
 import time
 import zlib
 
-from django.core.signing import BadSignature, SignatureExpired, b64_decode, JSONSerializer, \
-    Signer as Sgnr, TimestampSigner as TsS, dumps
+from django.core.signing import (
+    BadSignature,
+    SignatureExpired,
+    b64_decode,
+    JSONSerializer,
+    Signer as Sgnr,
+    TimestampSigner as TsS,
+    dumps,
+)
 from django.utils import baseconv
 from django.utils.crypto import constant_time_compare
 from django.utils.encoding import force_bytes, force_str, force_text
@@ -16,7 +23,13 @@ The difference is that `this` loads function calls `TimestampSigner` and `Signer
 """
 
 
-def loads(s, key=None, salt='django.core.signing', serializer=JSONSerializer, max_age=None):
+def loads(
+        s,
+        key=None,
+        salt: str = "django.core.signing",
+        serializer=JSONSerializer,
+        max_age=None,
+):
     """
     Reverse of dumps(), raise BadSignature if signature fails.
 
@@ -26,7 +39,7 @@ def loads(s, key=None, salt='django.core.signing', serializer=JSONSerializer, ma
     # operate on bytes.
     base64d = force_bytes(TimestampSigner(key, salt=salt).unsign(s, max_age=max_age))
     decompress = False
-    if base64d[:1] == b'.':
+    if base64d[:1] == b".":
         # It's compressed; uncompress it first
         base64d = base64d[1:]
         decompress = True
@@ -37,7 +50,6 @@ def loads(s, key=None, salt='django.core.signing', serializer=JSONSerializer, ma
 
 
 class Signer(Sgnr):
-
     def unsign(self, signed_value):
         # force_str is removed in Django 2.0
         signed_value = force_str(signed_value)
@@ -57,7 +69,6 @@ calling `this` Signer.
 
 
 class TimestampSigner(Signer, TsS):
-
     def unsign(self, value, max_age=None):
         """
         Retrieve original value and check it wasn't signed more
@@ -72,6 +83,5 @@ class TimestampSigner(Signer, TsS):
             # Check timestamp is not older than max_age
             age = time.time() - timestamp
             if age > max_age:
-                raise SignatureExpired(
-                    'Signature age %s > %s seconds' % (age, max_age))
+                raise SignatureExpired("Signature age %s > %s seconds" % (age, max_age))
         return value