mpm: Fix various Pylint issues

No functional changes. Fixes for things that PyLint complains about, but
are safe to change anyway, as well as a minor improvement to a docstring
that referenced non-existant args.

This touches files that are mpm.conf-related.

1 files changed, 4 insertions, 2 deletions

diff --git a/mpm/python/usrp_mpm/prefs.py b/mpm/python/usrp_mpm/prefs.py
index 0e9d636b2..55b6d803d 100644
--- a/mpm/python/usrp_mpm/prefs.py
+++ b/mpm/python/usrp_mpm/prefs.py
@@ -8,7 +8,6 @@ MPM preferences management
 """
 
 import configparser
-from builtins import object
 from usrp_mpm.mpmlog import TRACE, DEBUG, INFO, WARNING, ERROR, CRITICAL
 
 # Store the global preferences object
@@ -19,6 +18,9 @@ MPM_DEFAULT_CONFFILE_PATH = '/etc/uhd/mpm.conf'
 MPM_DEFAULT_LOG_LEVEL = 'info'
 MPM_DEFAULT_LOG_BUF_SIZE = 100 # Number of log records to buf
 
+# ConfigParser has too many parents for PyLint's liking, but we don't control
+# that, so disable that warning
+# pylint: disable=too-many-ancestors
 class _MPMPrefs(configparser.ConfigParser):
     """
     Container for MPM preferences.
@@ -83,6 +85,7 @@ class _MPMPrefs(configparser.ConfigParser):
         because the logger isn't ready yet.
         """
         return self._errors
+# pylint: enable=too-many-ancestors
 
 def get_prefs():
     """
@@ -92,4 +95,3 @@ def get_prefs():
     if _PREFS is None:
         _PREFS = _MPMPrefs()
     return _PREFS
-