Python Beautifulsoup Find_all except

问题

I'm struggling to find a simple to solve this problem and hope you might be able to help.

I've been using Beautifulsoup's find all and trying some regex to find all the items except the 'emptyLine' line in the html below:

<div class="product_item0 ">...</div>
<div class="product_item1 ">...</div>
<div class="product_item2 ">...</div>
<div class="product_item0 ">...</div>
<div class="product_item1 ">...</div>
<div class="product_item2 ">...</div>
<div class="product_item0 ">...</div>
<div class="product_item1 last">...</div>
<div class="product_item2 emptyItem">...</div>

Is there a simple way to find all the items except one including the 'emptyItem'?

回答1:

Just skip elements containing the emptyItem class. Working sample:

from bs4 import BeautifulSoup

data = """
<div>
    <div class="product_item0">test0</div>
    <div class="product_item1">test1</div>
    <div class="product_item2">test2</div>
    <div class="product_item2 emptyItem">empty</div>
</div>
"""

soup = BeautifulSoup(data, "html.parser")

for elm in soup.select("div[class^=product_item]"):
    if "emptyItem" in elm["class"]:  # skip elements having emptyItem class
        continue

    print(elm.get_text())

Prints:

test0
test1
test2

Note that the div[class^=product_item] is a CSS selector that would match all div elements with a class starting with product_item.

来源：https://stackoverflow.com/questions/35115417/python-beautifulsoup-find-all-except