29 lines
766 B
Python
29 lines
766 B
Python
from yamale.validators import Validator
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import validators
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class License(Validator):
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tag = "license"
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licenses = [
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"CC-BY-3.0",
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"CC-BY-4.0",
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"CC-BY-SA-3.0",
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"CC-BY-SA-4.0",
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"CC-BY-NC-3.0",
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"CC-BY-NC-4.0",
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"CC-BY-NC-SA-3.0",
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"CC-BY-NC-SA-4.0",
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"CC0-1.0",
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"MIT",
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"Custom", # implies that the license is described in the copyright field.
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"All right reserved"
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]
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def _is_valid(self, value):
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return value in self.licenses
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class Url(Validator):
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tag = "url"
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def _is_valid(self, value):
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# Source field is required to ensure its not neglected, but there may be no applicable URL
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return (value == "NA") or validators.url(value) |