python urandom
时间: 2023-08-26 17:18:25 浏览: 232
python-random
回答: 在Python中,`os.urandom()`函数用于获取一定长度的随机字节,可用于加密密钥的生成。它实际上是利用操作系统提供的随机源来获取随机数据。函数返回一个指定长度的`bytes`对象,适合用于加密和安全相关的应用。可以通过调用`os.urandom(n)`来获取指定长度的随机字节,其中`n`表示字节长度。该函数使用操作系统提供的随机源,因此生成的随机数具有不可预测性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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