fasta dict

def fasta2dict(fasta_name):
    with open(fasta_name) as fa:
        fa_dict = {}
        for line in fa:
            line = line.replace('\n','')
            if line.startswith('>'):
                seq_name = line[1:]
                fa_dict[seq_name] = ''
            else:
                fa_dict[seq_name] += line.replace('\n','')
    return  fa_dict