Clearing the Spacy EntityRuler in a loop

spacy_entityruler_clear.py

# Use case: You have a large list of terms, but you only need to match one for each loop
# e.g I have artciles for multiple topics, but I only want to match one topic at a time
# Instead of enabling or disabling a pipe component, or keeping a large dictionary with all your patters
# you can dynamically add your patters, and then clear the entity ruler

#add a ruler to spacy

ruler = nlp.add_pipe("entity_ruler", before='ner')

def get_patterns():
  ... #your dynamic function to get patterns here

for i in y:
  ruler.clear() #clears the patterns on each call
  patterns = get_patterns()
  ruler.add_patterns(patterns)