gistfile1.py

from __future__ import print_function


otu_list = ['otu1', 'otu2', 'otu15']
d = {'nice name': {'otu1': 24, 'otu15': 57}}

for name, otu_counts in d.items():
    cols = []
    for otu_key in otu_list:
        count = otu_counts.get(otu_key, 0)
        cols.append(count)
    print(name, sum(cols), *cols, sep='\t')