Oops! Missed one. More linter cleaning-up

vm.py

@@ -14,7 +14,6 @@ document][VM01B].
 """
 
 import array
-import asyncio
 from collections import namedtuple
 from enum import IntEnum
 import logging
@@ -23,7 +22,7 @@ import struct
 from utils import DotDict
 
 
-LOG = logging.getLogger(__name__)
+Log = logging.getLogger(__name__)
 
 
 class Register(namedtuple('Register', ['base', 'dtype', 'description'])):
@@ -46,6 +45,7 @@ class Register(namedtuple('Register', ['base', 'dtype', 'description'])):
         else:
             raise TypeError("Unrecognised dtype")
         return bs[:width//8]
+
     def decode(self, bs):
         if len(bs) < 4:
             bs = bs + bytes(4 - len(bs))
@@ -60,6 +60,7 @@ class Register(namedtuple('Register', ['base', 'dtype', 'description'])):
             whole, fraction = map(int, self.dtype[1:].split('.', 1))
             value = value / (1 << fraction)
         return value
+
     @property
     def maximum_value(self):
         if '.' in self.dtype:
@@ -68,8 +69,9 @@ class Register(namedtuple('Register', ['base', 'dtype', 'description'])):
             whole, fraction = int(self.dtype[1:]), 0
         if self.dtype[0] == 'S':
             whole -= 1
-        n = (1<<(whole+fraction)) - 1
+        n = (1 << (whole+fraction)) - 1
-        return n / (1<<fraction) if fraction else n
+        return n / (1 << fraction) if fraction else n
+
     @property
     def width(self):
         if '.' in self.dtype:
@@ -153,6 +155,9 @@ Registers = DotDict({
     "MasterClockM": Register(0xf8, 'U16', "PLL multiplier (MUL M)"),
 })
 
+
+# pylama:ignore=E221
+
 class TraceMode(IntEnum):
     Analog         = 0
     Mixed          = 1
@@ -172,6 +177,7 @@ class TraceMode(IntEnum):
     Macro          = 18
     MacroChop      = 19
 
+
 class BufferMode(IntEnum):
     Single    = 0
     Chop      = 1
@@ -180,6 +186,7 @@ class BufferMode(IntEnum):
     Macro     = 4
     MacroChop = 5
 
+
 class DumpMode(IntEnum):
     Raw    = 0
     Burst  = 1
@@ -190,6 +197,7 @@ class DumpMode(IntEnum):
     Filter = 6
     Span   = 7
 
+
 class SpockOption(IntEnum):
     TriggerInvert                 = 0x40
     TriggerSourceA                = 0x04 * 0
@@ -198,23 +206,28 @@ class SpockOption(IntEnum):
     TriggerTypeSampledAnalog      = 0x01 * 0
     TriggerTypeHardwareComparator = 0x01 * 1
 
+
 class KitchenSinkA(IntEnum):
     ChannelAComparatorEnable = 0x80
     ChannelBComparatorEnable = 0x40
 
+
 class KitchenSinkB(IntEnum):
     AnalogFilterEnable       = 0x80
     WaveformGeneratorEnable  = 0x40
 
+
 class TraceStatus(IntEnum):
     Done = 0x00
     Auto = 0x01
     Wait = 0x02
     Stop = 0x03
 
+
 CaptureMode = namedtuple('CaptureMode', ('trace_mode', 'clock_low', 'clock_high', 'clock_divide',
                                          'analog_channels', 'sample_width', 'logic_channels', 'buffer_mode'))
 
+
 CaptureModes = [
     CaptureMode(TraceMode.Macro,          40, 16384,     1, 1, 2, False, BufferMode.Macro),
     CaptureMode(TraceMode.MacroChop,      40, 16384,     1, 2, 2, False, BufferMode.MacroChop),
@@ -241,12 +254,15 @@ class VirtualMachine:
     class Transaction:
         def __init__(self, vm):
             self._vm = vm
+
         def append(self, cmd):
             self._data += cmd
+
         async def __aenter__(self):
             self._data = b''
             self._vm._transactions.append(self)
             return self
+
         async def __aexit__(self, exc_type, exc_value, traceback):
             if self._vm._transactions.pop() != self:
                 raise RuntimeError("Mis-ordered transactions")
@@ -275,7 +291,7 @@ class VirtualMachine:
         if isinstance(cmd, str):
             cmd = cmd.encode('ascii')
         if not self._transactions:
-            LOG.debug(f"Issue: {cmd!r}")
+            Log.debug(f"Issue: {cmd!r}")
             self._writer.write(cmd)
             await self._writer.drain()
             echo = await self._reader.readexactly(len(cmd))
@@ -293,7 +309,7 @@ class VirtualMachine:
             index = data.find(b'\r')
             if index >= 0:
                 reply = data[:index]
-                LOG.debug(f"Read reply: {reply!r}")
+                Log.debug(f"Read reply: {reply!r}")
                 replies.append(reply)
                 data = data[index+1:]
             else:
@@ -305,13 +321,13 @@ class VirtualMachine:
     async def issue_reset(self):
         if self._transactions:
             raise TypeError("Command transaction in progress")
-        LOG.debug("Issue reset")
+        Log.debug("Issue reset")
         self._writer.write(b'!')
         await self._writer.drain()
         while not (await self._reader.read(1000)).endswith(b'!'):
             pass
         self._reply_buffer = b''
-        LOG.debug("Reset complete")
+        Log.debug("Reset complete")
 
     async def set_registers(self, **kwargs):
         cmd = ''
@@ -319,7 +335,7 @@ class VirtualMachine:
         for base, name in sorted((Registers[name].base, name) for name in kwargs):
             register = Registers[name]
             bs = register.encode(kwargs[name])
-            LOG.debug(f"{name} = 0x{''.join(f'{b:02x}' for b in reversed(bs))}")
+            Log.debug(f"{name} = 0x{''.join(f'{b:02x}' for b in reversed(bs))}")
             for i, byte in enumerate(bs):
                 if cmd:
                     cmd += 'z'
@@ -425,5 +441,3 @@ class VirtualMachine:
 
     async def issue_write_eeprom(self):
         await self.issue(b'w')
-
-