Wsrtjtyk

I have list of list of tuples that I want to merge. Below code combines the properties with single list passed into 'classified_text', how do I iterate this concept for nested list of tuples? I tried adding another for loop and append method, but I get different error. Any simple way to do this? Thanks!

Input Text 1 - Working:

classified_text = [('John', 'PERSON'), ('Smith', 'PERSON'),('University', 'ORGANIZATION'), ('of', 'ORGANIZATION'), ('ABC', 'ORGANIZATION')] # Single list

Output Text 1 - Working:

[('PERSON      ', 'John Smith'), ('ORGANIZATION', 'University of ABC')]

Input Text 2 - Not Working: Nested list with tuples

classified_text = [[('John', 'PERSON'), ('Smith', 'PERSON')], [('University', 'ORGANIZATION'), ('of', 'ORGANIZATION'), ('ABC', 'ORGANIZATION')], [('some', 'O'), ('text', 'O'), ('here', 'O')], [('Mark', 'O'), ('from', 'O'), ('University', 'ORGANIZATION'), ('of', 'ORGANIZATION'), ('CA', 'ORGANIZATION')]]

Code:

from itertools import groupby

entity_extracted_words = 

for tag, chunk in groupby(classified_text, lambda x:x[1]):

    if tag != "O":

        info_ner = "%-12s"%tag, " ".join(w for w, t in chunk)

        entity_extracted_words.append(info_ner)



print('entity_extracted_words:n', entity_extracted_words)

Out Text 2 - Trying to get this result:

[('PERSON      ', 'John Smith'), ('ORGANIZATION', 'University of ABC'),('ORGANIZATION', 'University of CA')] 

Error:
TypeError: not all arguments converted during string formatting

Try something like this. Simply for-loop over the sublists, combining into a string and add them to the newlist

classified_text = [[('John', 'PERSON'), ('Smith', 'PERSON')], 

                   [('University', 'ORGANIZATION'), ('of', 'ORGANIZATION'), ('ABC', 'ORGANIZATION')],

                   [('some', 'O'), ('text', 'O'), ('here', 'O')],

                   [('Mark', 'O'), ('from', 'O'), ('University', 'ORGANIZATION'), ('of', 'ORGANIZATION'), ('CA', 'ORGANIZATION')]]



newlist = 

for sublist in classified_text:

    combined = 

    for chunk, tag in sublist:

        if tag == 'O':

            continue

        combined_tag = tag

        combined.append(chunk)



    # Append tag and string to list

    if combined:

        # If you wanted to space filled as in your example, you can use

        # the strings ljust method

        newlist.append((combined_tag.ljust(12), ' '.join(combined)))



print(newlist)



#[('PERSON      ', 'John Smith'),

# ('ORGANIZATION', 'University of ABC'),

# ('ORGANIZATION', 'University of CA')]

You could first flatten your list of lists into just a list:

flat_list = [item for sublist in classified_text for item in sublist]

And that flat list should work with your original code.