Cleanups

Author: projectgus

.flake8

@@ -1,2 +1,3 @@
 [flake8]
 max-line-length = 120
+ignore = S101

README.md

@@ -29,7 +29,8 @@ new_message = canalystii.Message(can_id=0x300,
                                  data=(0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08))
 # Send one copy to channel 1
 dev.send(1, new_message)
-# Send 3 copies to channel 0 (argument can be an instance of canalystii.Message or a list of instances)
+# Send 3 copies to channel 0
+# (argument can be an instance of canalystii.Message or a list of instances)
 dev.send(0, [new_message] * 3)
 
 # Stop both channels (need to call start() again to resume capturing or send any messages)
@@ -39,7 +40,7 @@ dev.stop(1)
 
 ## Limitations
 
-Currently, the following things are either not possible or not easy to support based on the known Canalyst-II protocol:
+Currently, the following things are not supported and may not be possible based on the known USB protocol:
 
 * CAN bus error conditions. There is a function `get_can_status()` that seems to provide access to some internal device state, not clear if this can be used to determine when errors occured or invalid messages seen.
 * Receive buffer hardware overflow detection (see Performance, below).

setup.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 import io
 import os
 

tests/loopback_tests.py

@@ -89,7 +89,7 @@ def test_clear_rx_buffer(device):
 def test_bitrate_mismatch(device):
     def print_status(label, msg):
         print(f"{label}:")
-        for field_name, field_type in msg._fields_:
+        for field_name, _field_type in msg._fields_:
             if field_name != "padding":
                 print(f"  {field_name}={hex(getattr(msg, field_name))} ")
         print()