all: Enable ruff F841 'Local variable is assigned to but never used'.

micropython/bluetooth/aioble/examples/l2cap_file_client.py

@@ -85,7 +85,7 @@ async def size(self, path):
     async def download(self, path, dest):
         size = await self.size(path)
 
-        send_seq = await self._command(_COMMAND_SEND, path.encode())
+        await self._command(_COMMAND_SEND, path.encode())
 
         with open(dest, "wb") as f:  # noqa: ASYNC101
             total = 0
@@ -97,7 +97,7 @@ async def download(self, path, dest):
                 total += n
 
     async def list(self, path):
-        send_seq = await self._command(_COMMAND_LIST, path.encode())
+        await self._command(_COMMAND_LIST, path.encode())
         results = bytearray()
         buf = bytearray(self._channel.our_mtu)
         mv = memoryview(buf)

micropython/bluetooth/aioble/examples/l2cap_file_server.py

@@ -132,23 +132,20 @@ async def control_task(connection):
                 file = msg[2:].decode()
 
                 if command == _COMMAND_SEND:
-                    op_seq = seq
                     send_file = file
                     l2cap_event.set()
                 elif command == _COMMAND_RECV:
-                    op_seq = seq
                     recv_file = file
                     l2cap_event.set()
                 elif command == _COMMAND_LIST:
-                    op_seq = seq
                     list_path = file
                     l2cap_event.set()
                 elif command == _COMMAND_SIZE:
                     try:
                         stat = os.stat(file)
                         size = stat[6]
                         status = 0
-                    except OSError as e:
+                    except OSError:
                         size = 0
                         status = _STATUS_NOT_FOUND
                     control_characteristic.notify(

micropython/bluetooth/aioble/multitests/ble_descriptor.py

@@ -32,9 +32,7 @@ async def instance0_task():
     char1_desc1.write("char1_desc1")
     char1_desc2 = aioble.Descriptor(char1, CHAR1_DESC2_UUID, read=True, write=True)
     char1_desc2.write("char1_desc2")
-    char2 = aioble.Characteristic(
-        service, CHAR2_UUID, read=True, write=True, notify=True, indicate=True
-    )
+    aioble.Characteristic(service, CHAR2_UUID, read=True, write=True, notify=True, indicate=True)
     char3 = aioble.Characteristic(
         service, CHAR3_UUID, read=True, write=True, notify=True, indicate=True
     )

micropython/espflash/espflash.py

@@ -258,7 +258,6 @@ def flash_write_file(self, path, blksize=0x1000):
         print(f"Flash write size: {size} total_blocks: {total_blocks} block size: {blksize}")
         with open(path, "rb") as f:
             seq = 0
-            subseq = 0
             for i in range(total_blocks):
                 buf = f.read(blksize)
                 # Update digest

micropython/ucontextlib/tests.py

@@ -24,7 +24,7 @@ def test_context_manager(self):
     def test_context_manager_on_error(self):
         exc = Exception()
         try:
-            with self._manager(123) as x:
+            with self._manager(123):
                 raise exc
         except Exception as e:
             self.assertEqual(exc, e)

micropython/udnspkt/udnspkt.py

@@ -43,36 +43,28 @@ def parse_resp(buf, is_ipv6):
     if is_ipv6:
         typ = 28  # AAAA
 
-    id = buf.readbin(">H")
+    buf.readbin(">H")  # id
     flags = buf.readbin(">H")
     assert flags & 0x8000
-    qcnt = buf.readbin(">H")
+    buf.readbin(">H")  # qcnt
     acnt = buf.readbin(">H")
-    nscnt = buf.readbin(">H")
-    addcnt = buf.readbin(">H")
-    # print(qcnt, acnt, nscnt, addcnt)
+    buf.readbin(">H")  # nscnt
+    buf.readbin(">H")  # addcnt
 
     skip_fqdn(buf)
-    v = buf.readbin(">H")
-    # print(v)
-    v = buf.readbin(">H")
-    # print(v)
+    buf.readbin(">H")
+    buf.readbin(">H")
 
     for i in range(acnt):
         # print("Resp #%d" % i)
         # v = read_fqdn(buf)
         # print(v)
         skip_fqdn(buf)
-        t = buf.readbin(">H")
-        # print("Type", t)
-        v = buf.readbin(">H")
-        # print("Class", v)
-        v = buf.readbin(">I")
-        # print("TTL", v)
+        t = buf.readbin(">H")  # Type
+        buf.readbin(">H")  # Class
+        buf.readbin(">I")  # TTL
         rlen = buf.readbin(">H")
-        # print("rlen", rlen)
         rval = buf.read(rlen)
-        # print(rval)
 
         if t == typ:
             return rval

micropython/urllib.urequest/urllib/urequest.py

@@ -48,10 +48,10 @@ def urlopen(url, data=None, method="GET"):
         if data:
             s.write(data)
 
-        l = s.readline()
-        l = l.split(None, 2)
+        l = s.readline()  # Status-Line
+        # l = l.split(None, 2)
         # print(l)
-        status = int(l[1])
+        # status = int(l[1])  # FIXME: Status-Code element is not currently checked
         while True:
             l = s.readline()
             if not l or l == b"\r\n":

pyproject.toml

@@ -63,7 +63,6 @@ ignore = [
   "F405",
   "E501",
   "F541",
-  "F841",
   "ISC001",
   "ISC003",  # micropython does not support implicit concatenation of f-strings
   "PIE810",  # micropython does not support passing tuples to .startswith or .endswith

python-ecosys/aiohttp/aiohttp/__init__.py

@@ -104,7 +104,6 @@ async def __aexit__(self, *args):
 
     async def _request(self, method, url, data=None, json=None, ssl=None, params=None, headers={}):
         redir_cnt = 0
-        redir_url = None
         while redir_cnt < 2:
             reader = await self.request_raw(method, url, data, json, ssl, params, headers)
             _headers = []

python-ecosys/cbor2/cbor2/_decoder.py

@@ -159,7 +159,7 @@ def decode_simple_value(decoder):
 
 
 def decode_float16(decoder):
-    payload = decoder.read(2)
+    decoder.read(2)
     raise NotImplementedError  # no float16 unpack function