Restore compatibility for Python 3.2 and earlier.

pkg_resources/__init__.py

@@ -21,7 +21,6 @@ import os
 import io
 import time
 import re
-import _imp
 import types
 import zipfile
 import zipimport
@@ -40,6 +39,12 @@ import tempfile
 import textwrap
 from pkgutil import get_importer
 
+try:
+    import _imp
+except ImportError:
+    # Python 3.2 compatibility
+    import imp as _imp
+
 PY3 = sys.version_info > (3,)
 PY2 = not PY3