Posted in Sapiosexual Difference between modes a, a+, w, w+, and r+ in built-in open function June 29, 2025 In Python’s built-in open function, what is the exact difference between the modes w, a, w+, a+, and r+? In particular, the documentation implies that all of these will allow writing to the file, and https://stackoverflow.com/questions/1466000/difference-between-modes-a-a-w-w-and-r-in-built-in-open-function