Handle new astroid With nodes

'expr' and 'vars' have been replaced by an 'items' list.

1 files changed, 4 insertions, 2 deletions

diff --git a/checkers/utils.py b/checkers/utils.py
index a3eecc0..68b5469 100644
--- a/checkers/utils.py
+++ b/checkers/utils.py
@@ -151,8 +151,10 @@ def is_defined_before(var_node):
                 if ass_node.name == varname:
                     return True
         elif isinstance(_node, astroid.With):
-            if not _node.expr.parent_of(var_node):
-                if _node.vars and _node.vars.name == varname:
+            for expr, vars in _node.items:
+                if expr.parent_of(var_node):
+                    break
+                if vars and vars.name == varname:
                     return True
         elif isinstance(_node, (astroid.Lambda, astroid.Function)):
             if _node.args.is_argument(varname):