PIL：我在哪里可以找到包含 PILLOW 抛出的所有异常的“异常”class

Question

After lots of struggle, I am unable to find any module named exception but in the source code on Github , it has a line something like from.exceptions import InvalidFileType, PILReadError . Where is this exception module? On the other hand, it throws some exceptions which are builtin to Python but I could not find any specific module like in requests.exceptions or some other modules.

I want to catch and deal with some certain exceptions and when I use Image.open('non existing file') , it throws an FileNotFoundError but the traceback shows no clue of where it came from. Does the Pillow uses exception directly from Exception class? If yes, then what is that from.exeption in source code?

Answer 1

The source you link appears to be to a fork of Pillow. The ".exceptions" is referring to the definitions in this file https://github.com/jleclanche/Pillow/blob/master/PIL/exceptions.py , which is in the same folder. There is a __init__.py file in this folder, so any.py file in this folder can be imported as a module (provided you run from within this folder or the folder is included in the PYTHONPATH). These exceptions are not currently part of the PILLOW source head.

To find out more about a particular exception, you can look at all of the attributes for a separate instance of the exception in question. For example, you could do something like this:

d = Exception('This is a base exception from exceptions')
dir(d)

And then you can see which attributes the exception object has. Two useful attributes would be __doc__ and __repr__