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LGTM.com - false positive - unused import in Python #5546

@ceteri

Description

@ceteri

Description of the false positive

The tests for unused import are causing false positives.
For example, inn the URL shown below, there's an import pytextrank which loads a factory for customized components within spaCy pipelines. Usage of this dependency happens during the add_pipe() pipeline calls in spaCy, as of the 3.x releases.

See https://spacy.io/usage/processing-pipelines#custom-components for details.
CC: @ines

This kind of false positive will likely also be the case in popular Python libraries that use "plugin" architectures, such as rdflib.

URL to the alert on the project page on LGTM.com

https://lgtm.com/projects/g/DerwenAI/pytextrank/snapshot/722e794d5db71885acef44eaf0c48e2ec3d4b204/files/sample.py?sort=name&dir=ASC&mode=heatmap#x523ba5599d0f7367:1

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