error[E0599]: the method `gen_range` exists for fn item `fn() -> ThreadRng {thread_rng}`, but its trait bounds were not satisfied

引用\[1\]:根据你的描述，你在安装Python的thread库时遇到了报错。你尝试了不同的镜像源，但结果都一样。然后你在Stackflow上看到了类似的讨论，得知Python3中的thread库可能已经改名为_thread。你尝试了安装_thread库，但又遇到了报错。最后你直接导入了_thread库，问题得到了解决。这说明_thread库可能已经被集成到了Anaconda中。\[1\]

引用\[2\]:另外，你还提到了遇到了"unindent does not match any outer indentation level"错误。这种错误通常有三个原因：代码前后缩进量不同、前后缩进符号不同、复制的代码导致tab与space混用。你可以将代码复制到notepad中，设置显示空格与制表符，以便更清晰地查看代码的缩进是否符合规范。根据你提供的问题描述，错误的原因可能是第一句代码前面的空格不正确导致的。\[2\]

至于你提到的错误信息"error\[E0599\]: the method `gen_range` exists for fn item `fn() -> ThreadRng {thread_rng}`, but its trait bounds were not satisfied"，这个错误信息可能与你的代码逻辑有关，但根据提供的信息无法确定具体原因。建议你检查代码中与该错误相关的部分，确保满足相关的trait约束条件。
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