如何构建 Python p2p 应用程序？
我是 Python 编程新手，对套接字有一些了解。我在网络上找不到任何简单的实现。其基本功能应包括：
- 简单的聊天
- 文件共享
- 对等查找
我如何开始，p2p 模型应该是什么？我不想使用任何库，例如 Twisted，因为它很复杂。
I am new to Python programming and have covered sockets a bit. I couldn't find any simple implementation on the web. Its basic functionality should cover:
- simple chat
- file sharing
- peer lookup
How do I start, and what should be the p2p model? I don't want to use any library such as Twisted, as it is complex.
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如果您愿意直接使用套接字，您可以自己编写该库。让每个节点包含定期更新的对等点列表，并将每个节点设置为向中央服务器通告其存在。您需要研究网络遍历算法、哈希表等，但这是可以完成的。正如 Xavier 所说，首先从简单开始，然后让它快速运行 - 然后添加功能。
为了简化起见，您可以首先实施手动对等互连；首先让文件共享和聊天正常工作，然后再添加对等/发现。
这里有相当多的工作，但如果你写了所有内容，可能会更容易实现 - 所有内容都更容易理解！但是，图书馆的好处是很多工作都是为您完成的。这是一个权衡:)
You could write the library yourself, if you're willing to work with sockets directly. Have each node contain a list of peers that is regularly updated, and set each node to advertise its presence to a central server. You'd need to look into network traversal algorithms, hash tables, etc but it could be done. As Xavier says, start simple first, and get it working quickly - then add features.
For simplification you could implement manual peering to start with; get file sharing and chat working first, and then add peering/discovery later.
There is quite a bit of work here but it may be more achievable if you've written everything - everything is easier to understand! But, the upside of a library is a lot of the work is done for you. It's a trade-off :)
对于对等查找，我将从一个简单的中央服务器开始，对于简单的聊天和文件共享，我将使用 HTTP 协议的衍生版本。
for the peer lookup I would begin with a simple central server and for simple chat and file sharing I would use a derivate of HTTP protocol.