diff --git a/aim/pytorch_lightning.py b/aim/pytorch_lightning.py
index b1e424d89..50d10c1aa 100644
--- a/aim/pytorch_lightning.py
+++ b/aim/pytorch_lightning.py
@@ -1,2 +1,2 @@
 # Alias to SDK PyTorch Lightning interface
-from aim.sdk.adapters.pytorch_lightning import AimLogger  # noqa F401
\ No newline at end of file
+from aim.sdk.adapters.pytorch_lightning import AimLogger  # noqa F401
diff --git a/aim/sdk/adapters/pytorch_lightning.py b/aim/sdk/adapters/pytorch_lightning.py
index cabd734c3..e08508e3c 100644
--- a/aim/sdk/adapters/pytorch_lightning.py
+++ b/aim/sdk/adapters/pytorch_lightning.py
@@ -48,9 +48,9 @@ def __init__(
         self,
         repo: Optional[str] = None,
         experiment: Optional[str] = None,
-        train_metric_prefix: Optional[str] = 'train_', # deprecated
-        val_metric_prefix: Optional[str] = 'val_',     # deprecated
-        test_metric_prefix: Optional[str] = 'test_',   # deprecated
+        train_metric_prefix: Optional[str] = 'train_',  # deprecated
+        val_metric_prefix: Optional[str] = 'val_',  # deprecated
+        test_metric_prefix: Optional[str] = 'test_',  # deprecated
         system_tracking_interval: Optional[int] = DEFAULT_SYSTEM_TRACKING_INT,
         log_system_params: Optional[bool] = True,
         capture_terminal_logs: Optional[bool] = True,
@@ -89,7 +89,9 @@ def __init__(
                 context_prefixes.pop('subset')
                 # context_prefixes is now empty {}
         elif train_metric_prefix != 'train_' or val_metric_prefix != 'val_' or test_metric_prefix != 'test_':
-            raise ValueError('Arguments "train_metric_prefix" "val_metric_prefix" "train_metric_prefix" cannot be used in conjunction with "context_prefixes".')
+            raise ValueError(
+                'Arguments "train_metric_prefix" "val_metric_prefix" "train_metric_prefix" cannot be used in conjunction with "context_prefixes".'
+            )
         # Deprecation warnings if SUBSET_metric_prefix arguments are not default
         if train_metric_prefix != 'train_':
             msg = 'The argument "train_metric_prefix" is deprecated. Consider using "context_prefixes" instead.'
@@ -180,14 +182,14 @@ def parse_context(self, name):
         for ctx, mappings in self._context_prefixes.items():
             for category, prefix in mappings.items():
                 if name.startswith(prefix):
-                    name = name[len(prefix):]
+                    name = name[len(prefix) :]
                     context[ctx] = category
                     break  # avoid prefix rename cascade
 
         for ctx, mappings in self._context_postfixes.items():
             for category, postfix in mappings.items():
                 if name.endswith(postfix):
-                    name = name[:-len(postfix)]
+                    name = name[: -len(postfix)]
                     context[ctx] = category
                     break  # avoid postfix rename cascade