From 0d04306861f82cb7489b1d6d261dbaf3d6c745dd Mon Sep 17 00:00:00 2001
From: Asher Foa <1268088+asherf@users.noreply.github.com>
Date: Sun, 19 Apr 2020 19:12:40 -0700
Subject: [PATCH] Fix deprecation warning.

---
 moto/ec2/urls.py   | 2 +-
 moto/ssm/models.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/moto/ec2/urls.py b/moto/ec2/urls.py
index 4d85b2f56..78f234320 100644
--- a/moto/ec2/urls.py
+++ b/moto/ec2/urls.py
@@ -2,6 +2,6 @@ from __future__ import unicode_literals
 from .responses import EC2Response
 
 
-url_bases = ["https?://ec2\.(.+)\.amazonaws\.com(|\.cn)"]
+url_bases = [r"https?://ec2\.(.+)\.amazonaws\.com(|\.cn)"]
 
 url_paths = {"{0}/": EC2Response.dispatch}
diff --git a/moto/ssm/models.py b/moto/ssm/models.py
index 201f43c5a..3ce3b3a22 100644
--- a/moto/ssm/models.py
+++ b/moto/ssm/models.py
@@ -651,7 +651,7 @@ class SimpleSystemManagerBackend(BaseBackend):
                 label.startswith("aws")
                 or label.startswith("ssm")
                 or label[:1].isdigit()
-                or not re.match("^[a-zA-z0-9_\.\-]*$", label)
+                or not re.match(r"^[a-zA-z0-9_\.\-]*$", label)
             ):
                 invalid_labels.append(label)
                 continue