From bda4dc0e4b3a1d721da57e1e89678897c7db8f94 Mon Sep 17 00:00:00 2001
From: Danny Hermes <daniel.j.hermes@gmail.com>
Date: Thu, 11 May 2017 12:28:35 -0700
Subject: [PATCH] Making enum34 dependency conditional on Python version.
 (#3402)

Fixes #3398.
---
 vision/setup.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/vision/setup.py b/vision/setup.py
index fa060544598c..6f007504fead 100644
--- a/vision/setup.py
+++ b/vision/setup.py
@@ -51,10 +51,12 @@
 
 
 REQUIREMENTS = [
-    'enum34',
     'google-cloud-core >= 0.24.0, < 0.25dev',
     'gapic-google-cloud-vision-v1 >= 0.90.3, < 0.91dev',
 ]
+EXTRAS_REQUIRE = {
+    ':python_version<"3.4"': ['enum34'],
+}
 
 setup(
     name='google-cloud-vision',
@@ -67,5 +69,6 @@
     ],
     packages=find_packages(exclude=('tests*',)),
     install_requires=REQUIREMENTS,
+    extras_require=EXTRAS_REQUIRE,
     **SETUP_BASE
 )