diff --git a/vyper/codegen/function_definitions/external_function.py b/vyper/codegen/function_definitions/external_function.py
index 6e38fc023f..76156e4ebd 100644
--- a/vyper/codegen/function_definitions/external_function.py
+++ b/vyper/codegen/function_definitions/external_function.py
@@ -49,7 +49,9 @@ def _register_function_args(func_t: ContractFunctionT, context: Context) -> list
     return ret
 
 
-def _generate_kwarg_handlers(func_t: ContractFunctionT, context: Context) -> dict[str, tuple[int, IRnode]]:
+def _generate_kwarg_handlers(
+    func_t: ContractFunctionT, context: Context
+) -> dict[str, tuple[int, IRnode]]:
     # generate kwarg handlers.
     # since they might come in thru calldata or be default,
     # allocate them in memory and then fill it in based on calldata or default,
diff --git a/vyper/codegen/module.py b/vyper/codegen/module.py
index 5a833db72a..a94eab9e3a 100644
--- a/vyper/codegen/module.py
+++ b/vyper/codegen/module.py
@@ -141,7 +141,7 @@ def _selector_section_dense(external_functions, global_ctx):
     assert dst >= 0
 
     # XXX: re-enable this in debug mode:
-    #selector_section.append(["assert", ["eq", "msize", 0]])
+    # selector_section.append(["assert", ["eq", "msize", 0]])
 
     selector_section.append(["codecopy", dst, bucket_hdr_location, SZ_BUCKET_HEADER])
 
@@ -291,7 +291,7 @@ def _selector_section_sparse(external_functions, global_ctx):
         assert dst >= 0
 
         # XXX: re-enable this in debug mode
-        #selector_section.append(["assert", ["eq", "msize", 0]])
+        # selector_section.append(["assert", ["eq", "msize", 0]])
         selector_section.append(["codecopy", dst, bucket_hdr_location, SZ_BUCKET_HEADER])
 
         jumpdest = IRnode.from_list(["mload", 0])
@@ -387,7 +387,7 @@ def generate_ir_for_module(global_ctx: GlobalContext) -> tuple[IRnode, IRnode]:
 
     # XXX: AWAITING MCOPY PR
     # dense vs sparse global overhead is amortized after about 4 methods
-    dense = False # if core._opt_codesize() and len(external_functions) > 4:
+    dense = False  # if core._opt_codesize() and len(external_functions) > 4:
     if dense:
         selector_section = _selector_section_dense(external_functions, global_ctx)
     else:
diff --git a/vyper/ir/compile_ir.py b/vyper/ir/compile_ir.py
index ed2f4009b9..0b8c312d2b 100644
--- a/vyper/ir/compile_ir.py
+++ b/vyper/ir/compile_ir.py
@@ -1067,6 +1067,7 @@ def __init__(self, label):
     def __repr__(self):
         return f"DATA {self.label}"
 
+
 def relocate_segments(assembly):
     # relocate all data segments to the end, otherwise data could be
     # interpreted as PUSH instructions and mangle otherwise valid jumpdests