stdin.python

def all_distinct_files(context, version):
    hashes_to_file = defaultdict(list)
    for file_ in version.all_files:
        hashes_to_file[file_.hash].append(amo.PLATFORMS[file_.platform].name)

    return new_context(context,
        distinct_files=[' / '.join(platforms) for platforms in hashes_to_file.itervalues()],
        version=version)