diff -r 14b40afccd69 -r 6198190bc121 .pylint
--- a/.pylint	Tue Oct 03 16:31:31 2017 +0300
+++ b/.pylint	Thu Oct 05 16:38:49 2017 +0300
@@ -106,7 +106,7 @@
 
 # A regular expression matching the name of dummy variables (i.e. expectedly
 # not used).
-dummy-variables-rgx=(_+[a-zA-Z0-9]*?$)|dummy
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy
 
 # List of additional names supposed to be defined in builtins. Remember that
 # you should avoid to define new builtins when possible.