The YAMLLoader's load(filename) method calls PyYAML's corresponding load() function without an explicit Loader class. This has been deprecated since PyYAML version 5.1 because of potential security issues and produces a warning (see also https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation).
As PyYAML implicitely uses the safe FullLoader implementation if the parameter is omitted, this can be passed to its load() function without changing the behaviour of flask fixtures while still getting rid of the warning.
The
YAMLLoader'sload(filename)method calls PyYAML's correspondingload()function without an explicitLoaderclass. This has been deprecated since PyYAML version 5.1 because of potential security issues and produces a warning (see also https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation).As PyYAML implicitely uses the safe
FullLoaderimplementation if the parameter is omitted, this can be passed to itsload()function without changing the behaviour of flask fixtures while still getting rid of the warning.