www.pythonchallenge.com/pc/def/peak.html的来源如下：
<html>
<head>
<title>peak hell</title>
<link rel="stylesheet" type="text/css" href="../style.css">
</head>
<body>
<center>
<img src="peakhell.jpg"/>
<br><font color="#c0c0ff">
pronounce it
<br>
<peakhell src="banner.p"/>
</body>
</html>
<!-- peak hell sounds familiar ? -->
www.pythonchallenge.com/pc/def/banner.p我可以通过右键单击并在 Firefox 中banner.p选择来获取 url ( )。copy link location如何仅使用 Python 获取此 url？