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AxenArk avatar AxenArk commented on May 28, 2024 1

I got this error too. I found if all blast hits (if any) for the last sequence in your fasta file fail to pass all the cutoffs, the "top_hits" will be empty and this error will pop out.

Here is how I fix this:
replace lines 351~357 of taxonomy_assignment_BLAST.py (as for 2021 May 22) with the following

if bool(current_best_hits) and current_query: #ENSURE A SET OF BLASTS TO PARSE
    best_level_taxonomy, blast_percent = Assign_Taxonomy(current_query, current_best_hits)

    # ### FINALLY FILL Sequence INFORMATION!!!!
    total_sequences_assigned += 1
    sequence_taxonomy_dict[current_query] = best_level_taxonomy
    percent_id_dict[current_query] = blast_percent
    log_and_print('Taxonomy Assignment for ' +  current_query +  ' = ' +  ':'.join(best_level_taxonomy)+'\n\n\n######')

I think line 351 of "taxonomy_assignment_BLAST.py" is corresponding to line 363 in your version of "taxonomy_assignment_BLAST_V2.py".

from assign-taxonomy-with-blast.

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