Prepare code for upgrade PyYAML to 5.x version

zenoss / ZenPacks.zenoss.ZenPackLib

This is a helper library for zenpacks.

http://zenpacklib.zenoss.com/

GNU General Public License v2.0

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Prepare code for upgrade PyYAML to 5.x version #560

Closed DeKapito closed 4 years ago

DeKapito commented 4 years ago

Fixes ZEN-31325

Fix tests and replace yaml.Loader with yaml.FullLoader (FullLoader is the safe version of Loader. Avoids arbitrary code execution). This commit is changing code to be compatible with PyYAML 5.x and saving backwards compatibility