Fix some pre-commit nits in gdb/__init__.py

I noticed that pre-commit has some complaints (flake8 and codespell)
about gdb/__init__.py.  This patch fixes these.

Approved-By: Tom de Vries <tdevries@suse.de>

diff --git a/gdb/python/lib/gdb/__init__.py b/gdb/python/lib/gdb/__init__.py
index 866c3129fa39f99cfffaa769857f06bd78936c4d..69c15b16d87b838a4e5e16ba15d311f387bb5834 100644 (file)
--- a/gdb/python/lib/gdb/__init__.py
+++ b/gdb/python/lib/gdb/__init__.py
@@ -408,10 +408,10 @@ class ParameterPrefix:
     # string.  Users are expected to sub-class this ParameterPrefix class
     # and add their own documentation.  If they don't, then GDB will
     # generate a suitable doc string.  But, if this (parent) class has a
-    # __doc__ sting of its own, then sub-classes will inherit that __doc__
+    # __doc__ string of its own, then sub-classes will inherit that __doc__
     # string, and GDB will not understand that it needs to generate one.
 
-    class _PrefixCommand(Command):
+    class _PrefixCommand(_gdb.Command):
         """A gdb.Command used to implement both the set and show prefixes.
 
         This documentation string is not used as the prefix command
@@ -490,7 +490,7 @@ class ParameterPrefix:
                 self.__doc__ = doc
             self.__cb = self.__find_callback(delegate, mode)
             self.__delegate = delegate
-            if not self.__cb is None:
+            if self.__cb is not None:
                 self.invoke = self.__invoke
             super().__init__(mode + " " + name, cmd_class, prefix=True)