理解python代码中的map和.text

您好，我正在使用代码，但无法理解下面一行中发生了什么

def get_users():
    content = requests.get('https://wiki.openstreetmap.org/wiki/Amazon_Logistics').content
    soup = BeautifulSoup(content,features='lxml')
    users_list = soup.find_all('bdi') #bdi tag holds the user ids
    users_list = [user for user in map(lambda x: x.text,users_list) if user!='Amazon']
    return users_list

谁能帮我一下吗

users_list = [user for user in map(lambda x: x.text,users_list) if user!='Amazon']