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我是新來的python。 我已經制作了我自己的網絡爬蟲，這個爬蟲應該是爲了練習Yelp。Web Crawler --- TypeError：強制爲Unicode：需要字符串或緩衝區，找不到類型
我不斷收到這個錯誤，似乎無法讓過去的第一頁：
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 26, in yelpSpider
TypeError: coercing to Unicode: need string or buffer, NoneType found
這裏是我的代碼：
import requests
from BeautifulSoup import BeautifulSoup
def yelpSpider(maxPages):
page = 0
listURL = []
listRATE = []
listAREA = []
listADDRESS = []
listType = []
while page <= maxPages:
url = 'https://www.yelp.com/search?find_desc=Restaurants&find_loc=Manhattan,+NY&start=0' + str(page)
sourceCode = requests.get(url)
plainText = sourceCode.text
soup = BeautifulSoup(plainText)
for bizName in soup.findAll('a',{'class':'biz-name js-analytics-click'}):
href = 'https://www.yelp.com.com' + bizName.get('href')
listURL.append(href)
for rating in soup.findAll('img',{'class':'offscreen'}):
stars = rating.get('alt')
listRATE.append(stars)
for area in soup.findAll('span',{'class':'neighborhood-str-list'}):
listAREA.append(area.string)
for type in soup.findAll('span',{'class':'category-str-list'}):
listType.append(type)
for tracker in range(int(page),int(page) + 10):
print(listURL[tracker])
print(' ')
print(listAREA[tracker] + ' | ' + listRATE[tracker])
page += 10
yelpSpider(20)
謝謝你的幫助！
改變最後打印改爲前後解決您的listRATE：' print（'{} | {}'。format（listAREA [tracker]，listRATE [tracker]））' –