From bbe17ef42133f1c2dfcbf909a3945911bcb38789 Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Mon, 21 Mar 2011 18:46:28 +0100
Subject: [PATCH] statement effect inspection adjusted for tuples (PY-3143)

---
 .../python/inspections/PyStatementEffectInspection.java   | 8 ++++++++
 .../inspections/PyStatementEffectInspection/test.py       | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/python/src/com/jetbrains/python/inspections/PyStatementEffectInspection.java b/python/src/com/jetbrains/python/inspections/PyStatementEffectInspection.java
index d3a93503ac46..8a06bbba7e16 100644
--- a/python/src/com/jetbrains/python/inspections/PyStatementEffectInspection.java
+++ b/python/src/com/jetbrains/python/inspections/PyStatementEffectInspection.java
@@ -128,6 +128,14 @@ public class PyStatementEffectInspection extends PyInspection {
           }
         }
       }
+      else if (expression instanceof PyTupleExpression) {
+        PyExpression[] elements = ((PyTupleExpression)expression).getElements();
+        for (PyExpression element : elements) {
+          if (hasEffect(element)) {
+            return true;
+          }
+        }
+      }
       return false;
     }
   }
diff --git a/python/testData/inspections/PyStatementEffectInspection/test.py b/python/testData/inspections/PyStatementEffectInspection/test.py
index 8842c40e6e84..af9464037762 100644
--- a/python/testData/inspections/PyStatementEffectInspection/test.py
+++ b/python/testData/inspections/PyStatementEffectInspection/test.py
@@ -20,3 +20,5 @@ cout << "Hello, world" # must not be reported
 len(x) if True else len(y)
 
 (foo())
+
+foo(),