diff --git a/pyconstants.py b/pyconstants.py
index d532e9d..3071da7 100644
--- a/pyconstants.py
+++ b/pyconstants.py
@@ -1,8 +1,9 @@
 import sys
 from collections import defaultdict
-from typing import Dict, Callable, List, Final
 from dataclasses import dataclass
 from types import FrameType
+from typing import Callable, Dict, Final, List
+
 
 @dataclass
 class ConstantValue:
@@ -10,23 +11,28 @@ class ConstantValue:
     name: str
     value: object
 
+
 def _traceFun(frame: FrameType, event: str, arg: object) -> None:
     for constant in constMap[frame]:
-        if constant.name in frame.f_locals and frame.f_locals[constant.name] != constant.value:
-            frame.f_locals[constant.name] = constant.value 
+        if (
+            constant.name in frame.f_locals
+            and frame.f_locals[constant.name] != constant.value
+        ):
+            frame.f_locals[constant.name] = constant.value
             raise SyntaxError(f"Cannot assign value to constant {repr(constant.name)}")
 
+
 class _ConstClass:
     def __setattr__(self, name, value):
         """This is the method called when a new constant is created"""
         targetFrame = sys._getframe(1)
         targetFrame.f_trace_lines = False
         targetFrame.f_trace_opcodes = True
-        targetFrame.f_trace = _traceFun 
+        targetFrame.f_trace = _traceFun
         targetFrame.f_locals[name] = value
         constMap[targetFrame].append(ConstantValue(targetFrame, name, value))
 
 
-constMap: Dict[FrameType, List[ConstantValue]] = defaultdict(list) # FIXME
+constMap: Dict[FrameType, List[ConstantValue]] = defaultdict(list)  # FIXME
 sys.settrace(lambda frame, event, arg: None)
 const = _ConstClass()
diff --git a/test.py b/test.py
index d9e2bbd..2ff1561 100644
--- a/test.py
+++ b/test.py
@@ -1,9 +1,11 @@
 import pytest
+
 from pyconstants import const
 
+
 def test_costant():
     # It's not that complex, why am I even writing tests?
-    const .myvar = 5
+    const.myvar = 5
     with pytest.raises(SyntaxError):
         myvar = 7
     assert myvar == 5