It’s been a while since the last time I wrote about Python. This morning, I was listening to a podcast on my way to work. They were discussing functional programming and dynamic languages…I learned Python before I went into Computer Science, and then I learned about functional programming and through learning of Scala and Clojure, my functional programming concepts have been enriched. As I was listening, it suddenly appeared to me that there isn’t a way in Python to curry a function.
The problem In Java, imagine you have a list of User objects, each encapsulates the user’s id, first name, last name and age. Then you want to call a web service UserService.deleteUsersByIds(List<Integer> userIds) to delete the users from your data store. It doesn’t sound too hard, does it? All you need to do is to transform you List<User> to List<Integer>. So you go ahead and write the following code: