The documentation at Workflow: Train a Model
states that the training API is:
prodigy textcat.batch-train metooindia /tmp/model --eval-split 0.2 --label LABEL
which throws different errors, such as OSError: [E053] Could not read meta.json from model\meta.json
and prodigy textcat.batch-train: error: unrecognized arguments: --label LABEL
The correct API which works for me in Prodigy v1.6.1 is
prodigy textcat.batch-train metooindia --output-model model --eval-split 0.2