Fix bytes endpoint in python3

httpbin/core.py

@@ -458,7 +458,7 @@ def random_bytes(n):
         random.seed(int(params['seed']))
 
     response = make_response()
-    response.data = bytes().join(chr(random.randint(0, 255)) for i in xrange(n))
+    response.data = os.urandom(n)
     response.content_type = 'application/octet-stream'
     return response
 

test_httpbin.py

@@ -129,6 +129,10 @@ class HttpbinTestCase(unittest.TestCase):
         self.assertEqual(len(response.get_data()), 400)
         self.assertEqual(response.status_code, 200)
 
+    def test_get_bytes(self):
+        response = self.app.get('/bytes/1024')
+        self.assertEqual(len(response.get_data()), 1024)
+        self.assertEqual(response.status_code, 200)
 
 
 if __name__ == '__main__':