--- /dev/null
+From 29053c4832229efa7160fb944c05e3bc82e11540 Mon Sep 17 00:00:00 2001
+From: Martijn Buijs <Martijn.buijs@gmail.com>
+Date: Tue, 23 Apr 2019 18:20:12 +0200
+Subject: [PATCH] Switch to yaml.safe_load(_all) to prevent YAMLLoadWarning
+ (#1688)
+
+* Switch to yaml.safe_load(_all) to prevent YAMLLoadWarning
+
+* Change all usages of yaml.load to yaml.safe_load
+
+* Extend PyYAML's SafeLoader and use it with `yaml.load`
+
+Also added convenience functions for using this loader for reuse in
+`roslaunch`
+
+* fix typo in rosparam.yaml_load_all
+
+* Modify Loader and SafeLoader in yaml module directly
+
+* Revert whitespace change
+
+* Revert unrelated change to import through global variable construction
+---
+ clients/rospy/src/rospy/client.py | 2 +-
+ .../test/test_roslib_message.py | 2 +-
+ .../client_verification/test_slave_api.py | 2 +-
+ test/test_rosparam/test/check_rosparam.py | 8 ++---
+ .../check_rosparam_command_line_online.py | 2 +-
+ .../check_rosservice_command_line_online.py | 4 +--
+ test/test_rostopic/test/test_rostopic_unit.py | 30 +++++++++----------
+ tools/rosbag/src/rosbag/bag.py | 2 +-
+ tools/rosgraph/src/rosgraph/roslogging.py | 2 +-
+ tools/roslaunch/src/roslaunch/loader.py | 4 +--
+ .../test/unit/test_roslaunch_dump_params.py | 4 +--
+ tools/rosparam/src/rosparam/__init__.py | 7 ++++-
+ tools/rosservice/src/rosservice/__init__.py | 4 +--
+ tools/rostopic/src/rostopic/__init__.py | 6 ++--
+ tools/topic_tools/scripts/relay_field | 2 +-
+ 15 files changed, 43 insertions(+), 38 deletions(-)
+
+diff --git a/test/test_roslib_comm/test/test_roslib_message.py b/test/test_roslib_comm/test/test_roslib_message.py
+index 3d4e7a6fa..288cc375b 100644
+--- a/test/test_roslib_comm/test/test_roslib_message.py
++++ b/test/test_roslib_comm/test/test_roslib_message.py
+@@ -61,7 +61,7 @@ def test_strify_message(self):
+ def roundtrip(m):
+ yaml_text = strify_message(m)
+ print(yaml_text)
+- loaded = yaml.load(yaml_text)
++ loaded = yaml.safe_load(yaml_text)
+ print("loaded", loaded)
+ new_inst = m.__class__()
+ if loaded is not None: