using setRequiredAnnotatorTypes() with many of the annotators throws error.

[clayms]

Many of the annotators in annotator.py list requiredAnnotatorTypes() as a parameter when using either <annotatorName>().explainParams(), or dir(<annotatorName>).

However, when using <annotatorName>().setRequiredAnnotatorTypes on most of these annotators, the following error is thrown.

Py4JJavaError: An error occurred while calling o830.getParam.
: java.util.NoSuchElementException: Param requiredAnnotatorTypes does not exist.

The only place where the requiredAnnotatorTypes parameter is shown is in the class AnnotatorProperties of annotator.py starting on line 29.

[aleksei-ai]

@clayms What annotator you use?
I tried with different annotators and it works for me:
print(PerceptronApproach().explainParams())
print(EntityExtractor().explainParams())
print(ViveknSentimentApproach().explainParams())
print(NorvigSweetingApproach().explainParams())
print(NerCrfApproach().explainParams())

[clayms]

Hi @aleksei-ai I have tried it with RegexTokenizer, Normalizer, Stemmer, Lemmatizer, RegexMatcher, EntityExtractor, DateMatcher, SentenceDetectorModel, PerceptronApproach, SentimentDetectorModel, NERRegexApproach, and NorvigSweetingApproach.

the .explainParams() method works on all of them, but when I try and use the .setRequiredAnnotatorTypes when building the annotator to use in a pipeline, that is when the error I referenced above is thrown.

Thanks,

[saif-ellafi]

Hi, setRequiredAnnotatorTypes() is a deprecated method and should not be used. This function in python code is just a mistake of a lingering code. Shall be deleted. Thank you @clayms

Required annotators are a fixed property of annotators, and cannot be modified per annotators inherent functionality.

[saif-ellafi]

Merged Fix