Can’t really remember, sorry, that code was built for processing RSS feeds and data size was never an issue. I will take a look when get some free time… But, I

Can’t really remember, sorry, that code was built for processing RSS feeds and data size was never an issue. I will take a look when get some free time… But, I see what you mean. I had to deal with similar issues in commercial projects and the "pull" model (generators in Python ~ "yield return" in C#) almost never a good idea, especially when you have to have concurrent consumers. While callbacks are hard to combine, in C# it can be nicely abstracted with “async/await”, not sure how it is handled in Python, I stopped using it around 2.5