Reduce the amount of flake8 excludes

Change-Id: I07a8ba2c085854bf2815b2a8ee706e2da7730752
Signed-off-by: Jaromir Wysoglad <jwysogla@redhat.com>

observabilityclient/plugin.py

@@ -59,7 +59,7 @@ def build_option_parser(parser):
     parser.add_argument(
         '--os-observability-api-version',
         metavar='<observability-api-version>',
-        help='Observability Plugin API version, default='
+        help='Observability Plugin API version, default=' +
-             + DEFAULT_API_VERSION
+             DEFAULT_API_VERSION +
-             + ' (Env: OS_OSCPLUGIN_API_VERSION)')
+             ' (Env: OS_OSCPLUGIN_API_VERSION)')
     return parser

observabilityclient/rbac.py

@@ -40,8 +40,7 @@ class PromQLRbac:
 
     def _find_label_value_end(self, query, start, quote_char):
         end = start
-        while (end == start or
+        while (end == start or query[end - 1] == '\\'):
-               query[end - 1] == '\\'):
             # Looking for first unescaped quotes
             end = query.find(quote_char, end + 1)
         # returns the quote position or -1

tox.ini

@@ -55,19 +55,8 @@ commands = sphinx-build --keep-going -b html doc/source doc/build/html
 
 [flake8]
 show-source = True
-# A002 argument "input" is shadowing a python builtin
-# A003 class attribute "list" is shadowing a python builtin
-# D100 Missing docstring in public module
-# D101 Missing docstring in public class
-# D102 Missing docstring in public method
-# D103 Missing docstring in public function
-# D104 Missing docstring in public package
-# D105 Missing docstring in magic method
-# D106 Missing docstring in public nested class
-# D107 Missing docstring in __init__
-# W503 line break before binary operator
 # W504 line break after binary operator
-ignore = A002,A003,D100,D101,D102,D103,D104,D105,D106,D107,W503,W504
+ignore = W504
 exclude = .venv,.git,.tox,dist,doc,*egg,build,*lib/python*
 # [H101] Include your name with TODOs as in # TODO(yourname).
 # [H104] Empty files should not contain license or comments