diff --git a/code_data/_blocks.py b/code_data/_blocks.py
index f320722..a5e50c9 100644
--- a/code_data/_blocks.py
+++ b/code_data/_blocks.py
@@ -72,7 +72,6 @@ def bytes_to_blocks(
         found_constants.found_index(0)
 
     for opcode, arg, n_args, offset, next_offset in _parse_bytes(b):
-
         # Compute the jump targets, initially with just the byte offset
         # Once we know all the block targets, we will transform to be block offsets
         processed_arg = to_arg(
@@ -187,7 +186,6 @@ def blocks_to_bytes(
 
     # Iterate through all blocks and change jump instructions to offsets
     while changed_instruction_lengths:
-
         current_instruction_offset = 0
         # First go through and update all the instruction blocks
         for block_index, block in enumerate(blocks):
diff --git a/code_data/_code_data.py b/code_data/_code_data.py
index d9f18ce..8ade570 100644
--- a/code_data/_code_data.py
+++ b/code_data/_code_data.py
@@ -23,7 +23,6 @@
 
 
 def to_code_data(code: CodeType) -> CodeData:
-
     if sys.version_info >= (3, 8):
         posonlyargcount = code.co_posonlyargcount
     else:
diff --git a/code_data/_normalize.py b/code_data/_normalize.py
index a4b560b..9e2c443 100644
--- a/code_data/_normalize.py
+++ b/code_data/_normalize.py
@@ -9,7 +9,6 @@
 
 
 def normalize(x: T) -> T:
-
     if isinstance(x, CodeData):
         return cast(
             T,