AllenNLP

0.9.1.dev201910011800 verified Fri May 01 auth: no python

An open-source NLP research library built on PyTorch. The nightly build tracks development changes and may be unstable. The latest stable release is 2.10.1 (requires Python >=3.6.1). Release cadence: irregular, with major versions roughly every few months.

pip install allennlp-pvt-nightly

Common errors

error ModuleNotFoundError: No module named 'allennlp_models' ↓

cause Gluing pretrained model loading often requires allennlp_models package.

fix

Run: pip install allennlp_models

error AttributeError: module 'allennlp' has no attribute 'predictors' ↓

cause Trying to import Predictor from the allennlp root package.

fix

Use: from allennlp.predictors import Predictor

Warnings

breaking AllenNLP v2.0 removed the 'allennlp.commands' module. Use 'allennlp run' or programmatic APIs instead. ↓

fix Update scripts to use allennlp.run or direct API calls.

breaking Nightly builds may have incompatible changes or missing dependencies. Pin to a specific nightly version for reproducibility. ↓

fix Install a specific version: pip install allennlp-pvt-nightly==0.9.1.dev201910011800

gotcha The nightly build might have different model serialization format than stable releases. ↓

fix Use models trained with the same nightly version.

Imports

AllenNLP
wrong
```
from allennlp import AllenNLP
```
correct
```
from allennlp.common import JsonDict
```
AllenNLP does not export a top-level package named 'AllenNLP'; use submodules.
Predictor
wrong
```
from allennlp import Predictor
```
correct
```
from allennlp.predictors import Predictor
```
Predictor is in allennlp.predictors, not at the package root.

Quickstart

Load a pretrained BiDAF model and run a prediction. Requires allennlp_models to be installed.

from allennlp.predictors import Predictor
import allennlp_models

predictor = Predictor.from_path("https://storage.googleapis.com/allennlp-public-models/bidaf-elmo-model-2020.03.19.tar.gz")
result = predictor.predict("The quick brown fox jumps over the lazy dog.")
print(result)