test: fix pylint errors in multiplexed_log.py

* don't inherit from object
* remove superfluous comprehension
* add module docstring

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/test/py/multiplexed_log.py b/test/py/multiplexed_log.py
index 545a7743022335ba5d489955ec6875bbb2914bcf..442edada1257acbb810f8023a539abd1f324f960 100644 (file)
--- a/test/py/multiplexed_log.py
+++ b/test/py/multiplexed_log.py
@@ -2,8 +2,10 @@
 # Copyright (c) 2015 Stephen Warren
 # Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
 
-# Generate an HTML-formatted log file containing multiple streams of data,
-# each represented in a well-delineated/-structured fashion.
+"""
+Generate an HTML-formatted log file containing multiple streams of data,
+each represented in a well-delineated/-structured fashion.
+"""
 
 import datetime
 import html
@@ -178,7 +180,7 @@ class RunAndLog(object):
             raise exception
         return output
 
-class SectionCtxMgr(object):
+class SectionCtxMgr:
     """A context manager for Python's "with" statement, which allows a certain
     portion of test code to be logged to a separate section of the log file.
     Objects of this type should be created by factory functions in the Logfile
@@ -206,7 +208,7 @@ class SectionCtxMgr(object):
     def __exit__(self, extype, value, traceback):
         self.log.end_section(self.marker)
 
-class Logfile(object):
+class Logfile:
     """Generates an HTML-formatted log file containing multiple streams of
     data, each represented in a well-delineated/-structured fashion."""
 
@@ -320,8 +322,8 @@ $(document).ready(function () {
     # The set of characters that should be represented as hexadecimal codes in
     # the log file.
     _nonprint = {ord('%')}
-    _nonprint.update({c for c in range(0, 32) if c not in (9, 10)})
-    _nonprint.update({c for c in range(127, 256)})
+    _nonprint.update(c for c in range(0, 32) if c not in (9, 10))
+    _nonprint.update(range(127, 256))
 
     def _escape(self, data):
         """Render data format suitable for inclusion in an HTML document.