Python BeautifulSoup with Optional Tags

Let me set up an example:

    from BeautifulSoup import BeautifulStoneSoup
    root = '''  <all2>
                    <images>
                        <image>
                            <name> Picture </name>
                            <url> www.thing.com</url>
                        </image>
                        <image> 
                            <name> Another one! </name>
                        </image>
                    </images>
                </all2>
                      '''

soup = BeautifulStoneSoup(root)
for img in soup.all2.images.findAll("image"):
    iname = img.i_name
    iurl = img.url
    print ina开发者_运维问答me
    print iurl

Let the tag be optional. In this case, the second iteration will fail to to find a tag, and an exception will be thrown:

AttributeError: 'NoneType' object has no attribute 'renderContents'

I would like for iurl to be None if an optional tag does not appear. Is this possible? Or is my XML understanding wrong.

---

What do you want with 'nameTag'???

The BeautifulSoup documentation clearly tells you to use

  iname = img.name.renderContents()
  iurl = img.url.renderContents()

Zero reason to invent new syntax or semantics here