diff --git a/folly/experimental/coro/scripts/co_bt.py b/folly/experimental/coro/scripts/co_bt.py
index ba0d99c5440..77181ca9630 100755
--- a/folly/experimental/coro/scripts/co_bt.py
+++ b/folly/experimental/coro/scripts/co_bt.py
@@ -264,7 +264,7 @@ def print_async_stack_addrs(addrs: List[DebuggerValue]) -> None:
         print("No async operation detected")
         return
     num_digits = len(str(len(addrs)))
-    for (i, addr) in enumerate(addrs):
+    for i, addr in enumerate(addrs):
         func_name = addr.get_func_name()
         if func_name is None:
             func_name = "???"
@@ -442,7 +442,7 @@ def print_async_stack_root_addrs(addrs: List[DebuggerValue]) -> None:
         print("No async stack roots detected")
         return
     num_digits = len(str(len(addrs)))
-    for (i, addr) in enumerate(addrs):
+    for i, addr in enumerate(addrs):
         async_stack_root = AsyncStackRoot.from_addr(addr)
         if not async_stack_root.stack_frame_ptr.is_nullptr():
             stack_frame = StackFrame.from_addr(async_stack_root.stack_frame_ptr)
@@ -594,7 +594,9 @@ def to_hex(self) -> str:
 
             def get_file_name_and_line(self) -> Optional[Tuple[str, int]]:
                 regex = re.compile(r"Line (\d+) of (.*) starts at.*")
-                output = GdbValue.execute(f"info line *{self.to_hex()}",).split(
+                output = GdbValue.execute(
+                    f"info line *{self.to_hex()}",
+                ).split(
                     "\n"
                 )[0]
                 groups = regex.match(output)
@@ -606,7 +608,9 @@ def get_file_name_and_line(self) -> Optional[Tuple[str, int]]:
 
             def get_func_name(self) -> Optional[str]:
                 regex = re.compile(r"(.*) \+ \d+ in section.* of .*")
-                output = GdbValue.execute(f"info symbol {self.to_hex()}",).split(
+                output = GdbValue.execute(
+                    f"info symbol {self.to_hex()}",
+                ).split(
                     "\n"
                 )[0]
                 groups = regex.match(output)
diff --git a/folly/experimental/coro/scripts/test/co_bt.py b/folly/experimental/coro/scripts/test/co_bt.py
index d8a8a1f7e98..e65fd3ce0e2 100644
--- a/folly/experimental/coro/scripts/test/co_bt.py
+++ b/folly/experimental/coro/scripts/test/co_bt.py
@@ -16,6 +16,7 @@
 import sys
 import unittest
 
+
 # mock lldb module
 class Lldb:
     class Command:
diff --git a/folly/experimental/gdb/deadlock.py b/folly/experimental/gdb/deadlock.py
index 02718bb835b..feeae0713fe 100644
--- a/folly/experimental/gdb/deadlock.py
+++ b/folly/experimental/gdb/deadlock.py
@@ -319,7 +319,7 @@ def get_mutex_owner_and_address_func_for_type(mutex_type):
 
 def print_cycle(graph, lwp_to_thread_id, cycle):
     """Prints the threads and mutexes involved in the deadlock."""
-    for (m, n) in cycle:
+    for m, n in cycle:
         print(
             "Thread %d (LWP %d) is waiting on %s (0x%016x) held by "
             "Thread %d (LWP %d)"
diff --git a/folly/fibers/scripts/gdb.py b/folly/fibers/scripts/gdb.py
index d7d41c4ff3a..ebbf4180b0a 100644
--- a/folly/fibers/scripts/gdb.py
+++ b/folly/fibers/scripts/gdb.py
@@ -736,7 +736,7 @@ def get_fiber_info(only=None, managers=False):
 
         # first check if pre-cached
         if mid in get_fiber_info.cache:
-            for (fid, info) in get_fiber_info.cache[mid].items():
+            for fid, info in get_fiber_info.cache[mid].items():
                 fiber_id = "{}.{}".format(mid, fid)
                 if not only or str(mid) in only or fiber_id in only:
                     yield ((mid, fid), info)
@@ -773,7 +773,7 @@ def get_fiber_managers(only=None):
     """
     # first check if pre-cached
     if get_fiber_managers.cache:
-        for (mid, manager) in get_fiber_managers.cache.items():
+        for mid, manager in get_fiber_managers.cache.items():
             # output only if matching filter
             if not only or str(mid) in only:
                 yield (mid, manager)