<p>您需要将解析器更改为<code>lxml</code>并使用<code>headers = {'user-agent': 'Mozilla/5.0'}</code></p>
<pre><code>def getAmazonPrice(productUrl):
headers = {'user-agent': 'Mozilla/5.0'} # to make the server think its a web browser and not a bot
res = requests.get(productUrl, headers=headers)
res.raise_for_status()
soup = bs4.BeautifulSoup(res.text, 'lxml')
elems = soup.select_one('#mediaNoAccordion > div.a-row > div.a-column.a-span4.a-text-right.a-span-last')
return elems.text.strip()
price = getAmazonPrice('https://www.amazon.com/Automate-Boring-Stuff-Python-2nd-ebook/dp/B07VSXS4NK/ref=sr_1_1?crid=30NW5VCV06ZMP&dchild=1&keywords=automate+the+boring+stuff+with+python&qid=1586810720&sprefix=automate+the+bo%2Caps%2C288&sr=8-1')
print('The price is ' + price)
</code></pre>
<p><strong>快照</strong>：</p>
<p><a href="https://i.stack.imgur.com/e2iCA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/e2iCA.png" alt="enter image description here"/></a></p>
<hr/>
<p>如果要使用“选择”，则</p>
<pre><code>def getAmazonPrice(productUrl):
headers = {'user-agent': 'Mozilla/5.0'} # to make the server think its a web browser and not a bot
res = requests.get(productUrl, headers=headers)
res.raise_for_status()
soup = bs4.BeautifulSoup(res.text, 'lxml')
elems = soup.select('#mediaNoAccordion > div.a-row > div.a-column.a-span4.a-text-right.a-span-last')
return elems[0].text.strip()
price = getAmazonPrice('https://www.amazon.com/Automate-Boring-Stuff-Python-2nd-ebook/dp/B07VSXS4NK/ref=sr_1_1?crid=30NW5VCV06ZMP&dchild=1&keywords=automate+the+boring+stuff+with+python&qid=1586810720&sprefix=automate+the+bo%2Caps%2C288&sr=8-1')
print('The price is ' + price)
</code></pre>
<hr/>
<p>试试这个</p>
<pre><code>def getAmazonPrice(productUrl):
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0'} # to make the server think its a web browser and not a bot
res = requests.get(productUrl, headers=headers)
res.raise_for_status()
soup = bs4.BeautifulSoup(res.text, 'lxml')
elems = soup.select('#mediaNoAccordion > div.a-row > div.a-column.a-span4.a-text-right.a-span-last')
return elems[0].text.strip()
price = getAmazonPrice('https://www.amazon.com/Automate-Boring-Stuff-Python-2nd-ebook/dp/B07VSXS4NK/ref=sr_1_1?crid=30NW5VCV06ZMP&dchild=1&keywords=automate+the+boring+stuff+with+python&qid=1586810720&sprefix=automate+the+bo%2Caps%2C288&sr=8-1')
print('The price is ' + price)
</code></pre>
