def echo_headers(headers, file=None):
    for k, v in sorted(headers.items()):
        click.echo("{0}: {1}".format(k.title(), v), file=file)
    click.echo(file=file)
Given the before and after copies of refcounts works out which aliases
dataset/ETHPy150Open mapbox/mapbox-cli-py/mapboxcli/scripts/geocoding.py/echo_headers--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/db/models/sql/query.py/alias_diff