我正在開發一個程式，該程式將從我的圖書館中刮取 metacritic 的電影資訊并顯示它，但在某些部分，如獲取評級總是什么都不回傳我做錯了什么？
from bs4 import BeautifulSoup
import requests
import os
def ratingsGet(headers, movie):
movie = movie.lower().replace(" ","-")
detail_link="https://www.metacritic.com/movie/" movie "/details"
detail_page = requests.get(detail_link, headers = headers)
soup = BeautifulSoup(detail_page.content, "html.parser")
#g_data = soup.select('tr.movie_rating td.data span')
g_data = soup.find_all("div", {"class": "movie_rating"})
print(g_data)
if g_data!= []:
return g_data[0].text
else:
return "Failed"
def getMovieInfo():
headers={'User-Agent': 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_0) AppleWebKit/536.1 (KHTML, like Gecko) Chrome/58.0.849.0 Safari/536.1'}
for movie in os.listdir("D:/Movies/"):
movie = movie.lower().replace(".mp4","")
print(movie)
print("Rating: " ratingsGet(headers,movie))
print("Home release year: " rYearGet(headers,movie))
break
html片段：
<table class="details" summary="13 Going on 30 Details and Credits">
<tr class="runtime">
<td class="label">Runtime:</td>
<td class="data">98 min</td>
</tr>
<tr class="movie_rating">
<td class="label">Rating:</td>
<td class="data">
Rated PG-13 for some sexual content and brief drug references.
</td>
</tr>
<tr class="company">
<td class="label">Production:</td>
<td class="data">Revolution Studios</td>
</tr>
uj5u.com熱心網友回復：
正如您所說，您需要尋找“tr”（而不是“div”）。我還將附加到這個答案。
- 僅嘗試使用
find（無需全部查找） - 如果結果
find不是無，則在其中再次查找以僅獲取文本，如下所示：
g_data.find("td", { "class": "data" }).text
一般代碼將是這樣的：
def ratingsGet(headers, movie):
movie = movie.lower().replace(" ","-")
detail_link="https://www.metacritic.com/movie/" movie "/details"
detail_page = requests.get(detail_link, headers = headers)
soup = BeautifulSoup(detail_page.content, "html.parser")
g_data = soup.find("tr", {"class": "movie_rating"})
# Check if that tr exists
if g_data is not None:
g_data = g_data.find("td", { "class": "data" })
# Check if the td inside of it exists
if g_data is not None:
return g_data.text.strip()
return "Failed"
uj5u.com熱心網友回復：
我只是在尋找錯誤的元素....
def ratingsGet(headers, movie):
movie = movie.lower().replace(" ","-")
detail_link="https://www.metacritic.com/movie/" movie "/details"
detail_page = requests.get(detail_link, headers = headers)
soup = BeautifulSoup(detail_page.content, "html.parser")
#g_data = soup.select('tr.movie_rating td.data span')
g_data = soup.find_all("tr", {"class": "movie_rating"})
print(g_data[0].text.strip(" "))
if g_data!= []:
return g_data[0].text
else:
return "Failed"
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