Lint a tiny bit

Author: rocky

trepan/options.py

@@ -400,9 +400,10 @@ def process_options(pkg_version: str, sys_argv: str, option_list=None):
             dbg_opts["output"] = DebuggerUserOutput(opts.output)
         except IOError:
             _, xxx_todo_changeme, _ = sys.exc_info()
-            (errno, strerror) = xxx_todo_changeme.args
-            print(f"I/O in opening debugger output file {opts.output}")
-            print(f"error({errno}): {strerror}")
+            if xxx_todo_changeme is not None:
+                (errno, strerror) = xxx_todo_changeme.args
+                print(f"I/O in opening debugger output file {opts.output}")
+                print(f"error({errno}): {strerror}")
         except Exception:
             print(f"Unexpected error in opening debugger output file {opts.output}")
             print(sys.exc_info()[0])

trepan/processor/trace.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-#   Copyright (C) 2009, 2013-2014, 2023 Rocky Bernstein
+#   Copyright (C) 2009, 2013-2014, 2023-2024 Rocky Bernstein
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -18,18 +18,19 @@
 # 'Helper' function for Processor. Put here so we
 # can use this in a couple of processors.
 
-from trepan import vprocessor as Mprocessor
+from typing import Optional
+from trepan.vprocessor import Processor
 
 
-class PrintProcessor(Mprocessor.Processor):
+class PrintProcessor(Processor):
     """A processor that just prints out events as we see them. This
     is suitable for example for line/call tracing. We assume that the
     caller is going to filter out which events it wants printed or
     whether it wants any printed at all.
     """
 
-    def __init__(self, debugger, opts=None):
-        Mprocessor.Processor.__init__(self, debugger)
+    def __init__(self, debugger, opts: Optional[dict]=None):
+        Processor.__init__(self, debugger, opts)
         return
 
     def event_processor(self, frame, event, arg):
@@ -43,7 +44,7 @@ def event_processor(self, frame, event, arg):
         else:
             out.write("%s - %s:%d" % (event, filename, lineno))
             if arg is not None:
-                out.writeline(", %s " % repr(arg))
+                out.writeline(f", {repr(arg)} ")
             else:
                 out.writeline("")
                 pass

trepan/vprocessor.py

@@ -15,6 +15,8 @@
 #
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Optional
 from pygments.console import colorize
 
 NotImplementedMessage = "This method must be overridden in a subclass"
@@ -28,9 +30,11 @@ class Processor:
     the events.
     """
 
-    def __init__(self, core_obj):
+    def __init__(self, core_obj, opts: Optional[dict]=None):
         self.core = core_obj
         self.debugger = core_obj.debugger
+        self.opts = opts
+        self.intf = []
         return
 
     # Note for errmsg, msg, and msg_nocr we don't want to simply make