Quick Start

Painless Test

Firstly, we need to create a new special judge function, like the following code in spj_demo.py.

def spj_func(stdin, stdout):
    inputs = [int(item.strip()) for item in stdin.read().strip().split(' ') if item]
    _correct_sum = sum(inputs)

    outputs = stdout.read().strip().split(' ', maxsplit=2)
    if len(outputs) >= 1:
        _result = int(outputs[0])
    else:
        return False, 'No output found.'

    if _result == _correct_sum:
        return True, 'Correct result.', 'Oh yeah, well done ^_^.'
    else:
        return False, 'Result {correct} expected but {actual} found.'.format(
            correct=repr(_correct_sum), actual=repr(_result)
        )


__spj__ = spj_func

Then test a simple pair of input and output by the following command line.

pyspj -i '1 2 3 4 5' -o 15 -s spj_demo

The output should be

{"correctness": true, "detail": "Oh yeah, well done ^_^.", "message": "Correct result."}

But when wrong output is given like below

pyspj -i '1 2 3 4 5' -o 16 -s spj_demo

{"correctness": false, "detail": "Result 15 expected but 16 found.", "message": "Result 15 expected but 16 found."}

Use File Input/Ouput Instead

When the scale of input and output are too large, we can use -I and -O option to input from file or output to file.

Here is an example if input file input_demo.txt

1 2 3 4 5 6 7 8 9 10

And an output file output_demo.txt

55

When the following command is executed

pyspj -I input_demo.txt -O output_demo.txt -s spj_demo

The output result should be

{"correctness": true, "detail": "Oh yeah, well done ^_^.", "message": "Correct result."}

Pretty Print the Result

The output result is a json-formatted string, and it is placed in one line in default. So if you want it to be prettily printed, the following command can be used.

pyspj -i '1 2 3 4 5' -o 15 -s spj_demo -p

Its output should be

{
    "correctness": true,
    "detail": "Oh yeah, well done ^_^.",
    "message": "Correct result."
}