[test][lib] Fix dict keys and values retrieval

beat/core/test/test_lib.py

@@ -139,8 +139,8 @@ def test_dependencies():
 
     nose.tools.eq_(len(l.uses), 1)
     nose.tools.eq_(len(l.libraries), 1)
-    nose.tools.eq_(l.uses.keys()[0], 'dep1')
-    nose.tools.eq_(l.uses.values()[0], 'user/dep/1')
+    nose.tools.eq_(list(l.uses.keys())[0], 'dep1')
+    nose.tools.eq_(list(l.uses.values())[0], 'user/dep/1')
 
     l.uses = {} #reset
     l.uses['mod1'] = l_dep.name
@@ -152,8 +152,8 @@ def test_dependencies():
 
     nose.tools.eq_(len(l.uses), 1)
     nose.tools.eq_(len(l.libraries), 1)
-    nose.tools.eq_(l.uses.keys()[0], 'mod1')
-    nose.tools.eq_(l.uses.values()[0], 'user/dep/1')
+    nose.tools.eq_(list(l.uses.keys())[0], 'mod1')
+    nose.tools.eq_(list(l.uses.values())[0], 'user/dep/1')
 
     l.uses = {} #reset
     l.write() #rewrite