ruff: enable bugbear checks (#1565)

python/isotp.py

@@ -6,10 +6,8 @@ DEBUG = False
 def msg(x):
   if DEBUG:
     print("S:", binascii.hexlify(x))
-  if len(x) <= 7:
-    ret = bytes([len(x)]) + x
-  else:
-    assert False
+  assert len(x) <= 7
+  ret = bytes([len(x)]) + x
   return ret.ljust(8, b"\x00")
 
 kmsgs = []
@@ -56,7 +54,7 @@ def isotp_recv_subaddr(panda, addr, bus, sendaddr, subaddr):
     dat = msg[2:]
   else:
     print(binascii.hexlify(msg))
-    assert False
+    raise AssertionError
 
   return dat[0:tlen]
 
@@ -133,7 +131,7 @@ def isotp_recv(panda, addr, bus=0, sendaddr=None, subaddr=None):
       tlen = msg[0] & 0xf
       dat = msg[1:]
     else:
-      assert False
+      raise AssertionError
     dat = dat[0:tlen]
 
   if DEBUG:

python/spi.py

@@ -314,7 +314,7 @@ class STBootloaderSPIHandle(BaseSTBootloaderHandle):
 
       self._mcu_type = MCU_TYPE_BY_IDCODE[self.get_chip_id()]
     except PandaSpiException:
-      raise PandaSpiException("failed to connect to panda")  # pylint: disable=W0707
+      raise PandaSpiException("failed to connect to panda") from None
 
   def _get_ack(self, spi, timeout=1.0):
     data = 0x00