diff --git a/src/linkahead/common/models.py b/src/linkahead/common/models.py
index 12d36179c938ecb3b626c5c34be964b4a55b4349..bfe43b01367c9a8b47768240aa3f47a3cf31354c 100644
--- a/src/linkahead/common/models.py
+++ b/src/linkahead/common/models.py
@@ -1958,7 +1958,6 @@ class QueryTemplate():
         return len(self.get_errors()) > 0
 
 
-
 class Parent(Entity):
     """The parent entities."""
 
@@ -2130,7 +2129,6 @@ class Property(Entity):
         else:
             return is_reference(self.datatype)
 
-
     def value_matches_versionid(self):
         """Returns True if the value matches the pattern <id>@<version>"""
         return value_matches_versionid(self.value)
@@ -2139,6 +2137,7 @@ class Property(Entity):
         """Returns the ID part of the versionid with the pattern <id>@<version>"""
         return get_id_from_versionid(self.value)
 
+
 class Message(object):
 
     def __init__(
@@ -5684,6 +5683,7 @@ def _filter_entity_list_by_identity(listobject: list[Entity],
                 matches.append(candidate)
     return matches
 
+
 def value_matches_versionid(value: Union[int, str]):
     """Returns True if the value matches the pattern <id>@<version>"""
     if isinstance(value, int):
@@ -5693,6 +5693,7 @@ def value_matches_versionid(value: Union[int, str]):
                          "Did you call value_matches_versionid on a non reference value?")
     return "@" in value
 
+
 def get_id_from_versionid(versionid: str):
     """Returns the ID part of the versionid with the pattern <id>@<version>"""
     return versionid.split("@")[0]
diff --git a/unittests/test_entity.py b/unittests/test_entity.py
index 722930b2ad67f1917cdfac4716e790d243806688..2f413717c48f9e5424b6a380127db6a6be9760df 100644
--- a/unittests/test_entity.py
+++ b/unittests/test_entity.py
@@ -31,7 +31,7 @@ from linkahead import (INTEGER, Entity, Parent, Property, Record, RecordType,
                        configure_connection)
 import warnings
 from linkahead.common.models import (SPECIAL_ATTRIBUTES, get_id_from_versionid,
-value_matches_versionid)
+                                     value_matches_versionid)
 from linkahead.common.versioning import Version
 from linkahead.connection.mockup import MockUpServerConnection
 from lxml import etree
@@ -302,7 +302,7 @@ def test_filter_by_identity():
 def test_value_matches_versionid():
     assert value_matches_versionid(234) is False, "integer is no version id"
     assert value_matches_versionid("234") is False, ("string that only contains an integer is no "
-                                                "version id")
+                                                     "version id")
     assert value_matches_versionid("234@bfe1a42cb37aae8ac625a757715d38814c274158") is True, (
         "integer is no version id") is True
     with raises(ValueError):
@@ -312,12 +312,14 @@ def test_value_matches_versionid():
     p = Property(value="234@bfe1a42cb37aae8ac625a757715d38814c274158")
     assert p.value_matches_versionid() is True
 
+
 def test_get_id_from_versionid():
     assert get_id_from_versionid("234@bfe1a42cb37aae8ac625a757715d38814c274158") == "234"
     p = Property(value="234@bfe1a42cb37aae8ac625a757715d38814c274158")
     assert p.get_id_from_versionid_value() == "234"
 
+
 def test_get_versionid():
     e = Entity(id=234)
     e.version = Version(id="bfe1a42cb37aae8ac625a757715d38814c274158")
-    assert e.get_versionid() =="234@bfe1a42cb37aae8ac625a757715d38814c274158"
+    assert e.get_versionid() == "234@bfe1a42cb37aae8ac625a757715d38814c274158"