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Ensure next_index available when loading old stored KeyedVectors models #3117

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Mar 18, 2022
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Ensure next_index available when loading old stored KeyedVectors models #3117

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01c3598
fix #3114: ensure next_index available
gojomo Apr 14, 2021
c423815
rm trailing whitespace
gojomo Apr 17, 2021
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3 changes: 3 additions & 0 deletions gensim/models/keyedvectors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -258,6 +258,9 @@ def _load_specials(self, *args, **kwargs):
# fixup rename of vocab into map
if 'key_to_index' not in self.__dict__:
self._upconvert_old_vocab()
# ensure older instances have next_index
if not hasattr(self, 'next_index'):
self.next_index = len(self)

def _upconvert_old_vocab(self):
"""Convert a loaded, pre-gensim-4.0.0 version instance that had a 'vocab' dict of data objects."""
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