如何从Google Places API返回唯一值？

Question

我从Google Places API发出一个查询“巴西酒店”的请求，代码如下：

# url variable store url 
url = "https://maps.googleapis.com/maps/api/place/textsearch/json?"

# The text string on which to search 
query = input('Search query: ') 

# get method of requests module 
# return response object 
r = requests.get(url + 'query=' + query +
                        '&key=' + api_key + 
                        '&maxResults=1000') 

# json method of response object convert 
x = r.json() 

# store the value of result key in variable y 
y = x['results'] 

#Getting information from other pages with "next_page_token" param
places=[]

params = {
    'query': query, 
    'key' : api_key,
    'maxResults': '1000'
}

while "next_page_token" in x:
    params['pageToken'] = x['next_page_token'],
    res = requests.get(url, params = params)
    z = json.loads(res.content)
    places.extend(z['results'])


print(places)

但是返回结果需要很长时间（超过1天）。所以我停止了执行，当我打印它时，我得到了许多重复的名字，例如，我得到了16K个位置，但只有26个唯一的位置

是否可以从Google Places API返回唯一值