diff --git a/rules_python/whl.py b/rules_python/whl.py
index 3e9d4f88fa..b08099468e 100644
--- a/rules_python/whl.py
+++ b/rules_python/whl.py
@@ -18,6 +18,7 @@
 import os
 import pkg_resources
 import re
+import shutil
 import zipfile
 
 
@@ -53,6 +54,12 @@ def _dist_info(self):
     # e.g. google_cloud-0.27.0-py2.py3-none-any.whl ->
     #      google_cloud-0.27.0.dist-info
     return '{}-{}.dist-info'.format(self.distribution(), self.version())
+    
+  def _data(self):
+    # Return the name of the data directory within the .whl file.
+    # e.g. google_cloud-0.27.0-py2.py3-none-any.whl ->
+    #      google_cloud-0.27.0.data
+    return '{}-{}.data'.format(self.distribution(), self.version())
 
   def metadata(self):
     # Extract the structured data from metadata.json in the WHL's dist-info
@@ -105,6 +112,27 @@ def expand(self, directory):
     with zipfile.ZipFile(self.path(), 'r') as whl:
       whl.extractall(directory)
 
+    ### PURELIB HACK START
+    # Find any lib directories, and move them to the top level.
+    try:
+        data_contents = os.listdir(self._data())
+    except:
+        data_contents = []
+
+    # TODO: This is probably wrong. These have different targets, and probably both need to be
+    # installed.
+    if 'purelib' in data_contents:
+        source = os.path.join(self._data(), 'purelib')
+    elif 'platlib' in data_contents:
+        source = os.path.join(self._data(), 'platlib')
+    else:
+        source = None
+
+    if source:
+        for f in os.listdir(source):
+            shutil.move(os.path.join(source, f), directory)
+    ### PURELIB HACK END
+
   # _parse_metadata parses METADATA files according to https://www.python.org/dev/peps/pep-0314/
   def _parse_metadata(self, content):
     # TODO: handle fields other than just name
diff --git a/tools/piptool.par b/tools/piptool.par
index 11ec453cd7..98ff1c9d84 100755
Binary files a/tools/piptool.par and b/tools/piptool.par differ
diff --git a/tools/whltool.par b/tools/whltool.par
index 7cb59c0fbe..3c3c235831 100755
Binary files a/tools/whltool.par and b/tools/whltool.par differ