Testing functions isn't hard, but how do you test user input and output? In my last article, I started looking at "pytest", a framework for testing Python programs that's really changed the way I look ...

Which program is pickling and why? That seems like a very strange thing to do in this situation. The only time to pickle something is if you need to represent a non-string object on disk, but Python ...

I call this API with a JSON file, but i find that the input_data is not received correctly by the python script, how to handle it? The test script is put below ...