Fix for Python 4 (#4)

Fix for Python 4

Author: nicoddemus

test_echo.py

@@ -139,7 +139,7 @@ def test_echo_attr_module_object_attr(testdir):
     result = testdir.runpytest('--echo-attr=linecache.cache.__class__')
     if sys.version_info[0] == 2:
         match = "    linecache.cache.__class__: <type 'dict'>"
-    elif sys.version_info[0] == 3:
+    else:
         match = "    linecache.cache.__class__: <class 'dict'>"
 
     result.stdout.fnmatch_lines([match])