I am looking for an online python environment that allows me to read from and write to text files.
I want to be able to create a text file and enter text into it. Then I want to run my python code and have it read from the file and perform some basic commands. The text file has to save between executions of the code, I shouldn't have to rewrite the contents every time I want to run my code.
For example, I tried JDoodle. With that, I can create text files, but only with python code, which will not work for what I am trying to do. It also does not save between executions.