PyYAML was updated to 5.1 in all Fedoras (rawhide, branched and stable).
Most significant change is a new warning that can bit you is you treat warnings
as errors.
Please read
https://msg.pyyaml.org/load for full details about this.
tl;dr: Use of yaml.load() without specifying the Loader parameter has been
deprecated. It raises a custom warning that is not a subclass of DeprecationWarning.
--
Miro Hrončok
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Phone: +420777974800
IRC: mhroncok