HTML类的网页抓取问题

Question

import pandas as pd

import requests

from bs4 import BeautifulSoup

res = requests.get("https://www.digikey.com/products/en/inductors-coils- 

chokes/fixed-inductors/71/page/1")

soup = BeautifulSoup(res.content,'lxml')

table = soup.find_all('table')[0] 

df = pd.read_html(str(table))[0]

part_numbers = df["Manufacturer Part Number"].tolist()

manufacturer = df["Manufacturer"].tolist()

quantity_available = df["Quantity Available"].tolist()

m_qty = df["Minimum Quantity"].tolist()

types = df["Type"].tolist()

material = df["Material - Core"].tolist()

inductance = df["Inductance"].tolist()

tolerance = df["Tolerance"].tolist()

current_rating = df["Current Rating"].tolist()

current_saturation = df["Current - Saturation"].tolist()

shielding = df["Shielding"].tolist()

resistances = df["DC Resistance (DCR)"].tolist()

freq = df["Q @ Freq"].tolist()

frequency = df["Frequency - Self Resonant"].tolist()

ratings = df["Ratings"].tolist()

operating_temperature = df["Operating Temperature"].tolist()

i_frequency = df["Inductance Frequency - Test"].tolist()

mounting_type = df["Mounting Type"].tolist()

package = df["Package / Case"].tolist()

s_package = df["Supplier Device Package"].tolist()

size_dimension = df["Size / Dimension"].tolist()

height = df["Height - Seated (Max)"].tolist()

unit_price = df["Unit Price,USD"].tolist()

我正在尝试网络抓取，但我不知道如何导入单价，您可以看到在代码的末尾，其他工作正常，但单价代码不起作用；我必须弄清楚 HTML 代码，我该如何描述？另外，我需要一个循环来下载接下来的多个页面。