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Allow the RefResolver to be pickled #682

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Allow the RefResolver to be pickled #682

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12 changes: 12 additions & 0 deletions jsonschema/validators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -663,6 +663,18 @@ def __init__(
self._urljoin_cache = urljoin_cache
self._remote_cache = remote_cache

def __getstate__(self):
d = dict(self.__dict__)
# LRU caches don't pickle.
d.pop("_urljoin_cache", None)
d.pop("_remote_cache", None)
return d

def __setstate__(self, state):
self.__dict__.update(state)
self._urljoin_cache = lru_cache(1024)(urljoin)
self._remote_cache = lru_cache(1024)(self.resolve_from_url)

@classmethod
def from_schema(cls, schema, id_of=_id_of, *args, **kwargs):
"""
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