python_4.py

def fasta_names_to_dict(fasta_filename):
handin6.py

    """Extract FASTA IDs from file to dictionary"""

    names_dict = {}

    fasta_file = open(fasta_filename)

    for line in fasta_file:

        # Add to dictionary if line starts with '>'
        # Call to fasta_label_to_id to extract id from line
        if line.startswith('>'):
            # We don't need the values in the dictionary - just using ""
            names_dict[fasta_label_to_id(line)] = ""

    return names_dict