Use logger.warning instead of deprecated logger.warn

pip/wheel.py

@@ -803,8 +803,8 @@ class WheelBuilder(object):
                     try:
                         ensure_dir(output_dir)
                     except OSError as e:
-                        logger.warn("Building wheel for %s failed: %s",
-                                    req.name, e)
+                        logger.warning("Building wheel for %s failed: %s",
+                                       req.name, e)
                         build_failure.append(req)
                         continue
                 else:

tests/unit/test_wheel.py

@@ -77,7 +77,7 @@ def test_check_compatibility():
         wheel.check_compatibility(higher_v, name)
     assert 'is not compatible' in str(e)
 
-    # Should only log.warn - minor version is greator
+    # Should only log.warning - minor version is greater
     higher_v = (vc[0], vc[1] + 1)
     wheel.check_compatibility(higher_v, name)