diff --git a/llvm/utils/gn/get.py b/llvm/utils/gn/get.py
--- a/llvm/utils/gn/get.py
+++ b/llvm/utils/gn/get.py
@@ -5,7 +5,11 @@
 
 import io
 import os
-import urllib2
+try:
+    import urllib2
+except ImportError:
+    # Python 3 moved urlopen to urllib.request.
+    import urllib.request as urllib2
 import sys
 import zipfile