Recently, a colleague encountered a strange problem where in C++, after copying a string and modifying the copy’s content, the original value was also changed. For those not very familiar with C++, this seems a bit “spooky”. In this article, we’ll discuss this issue in depth, starting from a simple reproduction of the problem, to the underlying principles, and the changes in the C++ standard.

After ChatGPT was released, OpenAI open-sourced the Python library openai-python for model invocation. This library is very comprehensive, encapsulating the APIs published by OpenAI, and is also very simple to use.

The first version of this library implemented Python abstract classes and invocation methods for parameter encapsulation of various ChatGPT APIs, using the requests and aiohttp libraries to send synchronous or asynchronous HTTP requests. Overall, the external interface is good and easy to use. The overall source code implementation has good logical abstraction, using many advanced Python features, and the code is beautifully written, worth learning from. But essentially, this is still “API boy“ work, more of repetitive manual labor without much technical content.

So, in November 2023, OpenAI began introducing Stainless, eliminating the need to manually write SDK code. Each time, they only need to provide API protocol updates, and then code can be automatically generated, freeing them from repetitive manual labor. Specifically, new code was introduced in Pull 677 and released as the official V1 version.

I’ve been writing my personal blog for a while now. Previously, I was content as long as it was accessible, without much concern for speed. Recently, when accessing it myself, I felt that the page loading speed was quite slow, significantly affecting the experience. Moreover, slow loading also affects search engine rankings. So I set out to perform a series of optimizations on the blog to improve page loading speed. I encountered quite a few pitfalls along the way, which I’ll record in this article, hoping it will be helpful to others.