diff --git a/src/debugpy/server/api.py b/src/debugpy/server/api.py
index cbf911d4..ba50156d 100644
--- a/src/debugpy/server/api.py
+++ b/src/debugpy/server/api.py
@@ -321,7 +321,7 @@ wait_for_client = wait_for_client()
 
 def is_client_connected():
     return Adapter.connected_event.is_set()
-    
+
 
 def breakpoint():
     ensure_logging()
diff --git a/src/debugpy/server/cli.py b/src/debugpy/server/cli.py
index 0f5787b0..6aa97199 100644
--- a/src/debugpy/server/cli.py
+++ b/src/debugpy/server/cli.py
@@ -101,7 +101,7 @@ def set_address(mode):
             port = int(port)
         except Exception:
             port = -1
-        if not (0 <= port < 2 ** 16):
+        if not (0 <= port < 2**16):
             raise ValueError("invalid port number")
 
         options.mode = mode
diff --git a/src/debugpy/server/inspect/__init__.py b/src/debugpy/server/inspect/__init__.py
index f831ddb5..3de0dd0c 100644
--- a/src/debugpy/server/inspect/__init__.py
+++ b/src/debugpy/server/inspect/__init__.py
@@ -84,7 +84,7 @@ class ObjectInspector:
     def children(self) -> Iterable[ChildObject]:
         yield from self.named_children()
         yield from self.indexed_children()
-    
+
     def indexed_children_count(self) -> int:
         try:
             return len(self.obj)
@@ -93,7 +93,7 @@ class ObjectInspector:
 
     def indexed_children(self) -> Iterable[IndexedChildObject]:
         return ()
-    
+
     def named_children_count(self) -> int:
         return len(tuple(self.named_children()))
 
diff --git a/src/debugpy/server/inspect/stdlib.py b/src/debugpy/server/inspect/stdlib.py
index bb3caa6f..a92be110 100644
--- a/src/debugpy/server/inspect/stdlib.py
+++ b/src/debugpy/server/inspect/stdlib.py
@@ -8,7 +8,7 @@ from collections.abc import Iterable
 from itertools import count
 
 from debugpy.common import log
-from debugpy.server.inspect import ObjectInspector, IndexedChildObject, LenChildObject
+from debugpy.server.inspect import ObjectInspector, IndexedChildObject
 from debugpy.server.safe_repr import SafeRepr
 
 
diff --git a/src/debugpy/server/tracing/__init__.py b/src/debugpy/server/tracing/__init__.py
index 7af2bcb1..e140c99e 100644
--- a/src/debugpy/server/tracing/__init__.py
+++ b/src/debugpy/server/tracing/__init__.py
@@ -250,7 +250,7 @@ class Thread:
             )
             self.is_known_to_adapter = True
             return True
-        
+
     def stack_trace_len(self) -> int:
         """
         Returns the total count of frames in this thread's stack.
@@ -327,7 +327,7 @@ class StackFrame:
             result += ", internal=True"
         result += ")"
         return result
-    
+
     @property
     def line(self) -> int:
         return self.python_frame.f_lineno
@@ -359,8 +359,10 @@ class StackFrame:
                 Scope(self, "global", self.python_frame.f_globals),
             ]
         return self._scopes
-    
-    def evaluate(self, source: str, mode: Literal["eval", "exec", "single"] = "eval") -> object:
+
+    def evaluate(
+        self, source: str, mode: Literal["eval", "exec", "single"] = "eval"
+    ) -> object:
         code = compile(source, "<string>", mode)
         return eval(code, self.python_frame.f_globals, self.python_frame.f_locals)
 
diff --git a/src/debugpy/server/tracing/tracer.py b/src/debugpy/server/tracing/tracer.py
index 66d91b3a..9244eada 100644
--- a/src/debugpy/server/tracing/tracer.py
+++ b/src/debugpy/server/tracing/tracer.py
@@ -48,7 +48,7 @@ class Log:
         self.error = lambda *args, **kwargs: log.error("{0}", *args, **kwargs)
         self.exception = lambda *args, **kwargs: log.exception("{0}", *args, **kwargs)
 
-        #self.debug = nop  # TODO: improve logging performance enough to enable this.
+        # self.debug = nop  # TODO: improve logging performance enough to enable this.
 
 
 log = Log()
@@ -442,9 +442,7 @@ class Tracer:
         )
         self._process_exception(exc, thread, "reraise")
 
-    def _sys_excepthook(
-        self, exc_type: type, exc: BaseException, tb: TracebackType
-    ):
+    def _sys_excepthook(self, exc_type: type, exc: BaseException, tb: TracebackType):
         thread = self._this_thread()
         if thread is None or not thread.is_traced:
             return
@@ -522,5 +520,6 @@ class Tracer:
             f"sys.monitoring event: EXCEPTION_HANDLED({code}, {ip}, {type(exc).__qualname__})"
         )
 
+
 tracer = Tracer()
 del Tracer