try to fix stalling example 3

tox.ini

@@ -79,7 +79,7 @@ commands =
     sh -c 'echo DISPLAY=$DISPLAY'
     sh -c 'echo XAUTHORITY=$XAUTHORITY'
 ; pipe echo into python since some examples expect input to close the window after the example is run
-    sh -c 'ls examples/*.py | xargs -I{} -n 1 sh -c "echo -e \"\n====== Running {} ========\n\"; echo "q\n" | python {}"'
+    sh -c 'ls examples/*.py | xargs -I{} -n 1 sh -c "echo -e \"\n====== Running {} ========\n\"; echo "q" | python {}"'
 
 [testenv:notebooks]
 basepython = python