parsing a fasta file using a generator ( python )

Question

I am trying to parse a large fasta file and I am encountering out of memory errors. Some suggestions to improve the data handling would be appreciated. Currently the program

Answer 1

def read_fasta(filename):
    name = None
    with open(filename) as file:
        for line in file:
            if line[0] == ">":
                if name:
                    yield (name, seq)
                name = line[1:-1].split("|")[0]
                seq = ""
            else:
                seq += line[:-1]
        yield (name, seq)