[python] fix last token fetch logic #2423
Merged
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Description
When exception occurs in inference, we catch it and set the last token as dummy token. So atleast one token should be set, even if exception occurred.
But to check whether last_token_index is set or not, we check
if _last_token_index
will be false whenlast_token_index=0
.This PR reverts the yesterday's PR.
Tested it manually in my ec2 machine