get_major.py

def get_major(items):
    map = {}
    major_count = round(len(items) / 2)
    for item in items:
        if map.get(item):
            if map[item] + 1 >= major_count:
                return item
            map[item] = map[item] + 1
        else:
            map[item] = 1
    return None