コマンドラインから入力された url を data.html に保存する。
import urllib import sys url = sys.argv[1] filename = "data.html" urllib.urlretrieve(url, filename)
実行結果の data.html（の冒頭部分）
<!DOCTYPE html>
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<html id="ie6" lang="ja">
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<html id="ie7" lang="ja">
<![endif]-->
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<html id="ie8" lang="ja">
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<title>変数に関数と同じ名前をつけてはいけない | blog.PanicBlanket.com</title>
<link rel="profile" href="http://gmpg.org/xfn/11" />
<link rel="stylesheet" type="text/css" media="all" href="https://blog.panicblanket.com/wp-content/themes/twentyeleven/style.css" />
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<script src="https://blog.panicblanket.com/wp-content/themes/twentyeleven/js/html5.js" type="text/javascript"></script>
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var CrayonSyntaxStrings = {"copy":"\u8cbc\u308a\u4ed8\u3051\u306b\u30b3\u30d4\u30fc\u3001%s\u306b%s\u3092\u62bc\u3057\u3066\u3001","minimize":"Click To Expand Code"};
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<style type="text/css" id="custom-background-css">
body.custom-background { background-color: #e2e2e2; }
</style>
</head>