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from __future__ import unicode_literals
import os
import signal
# Local imports
from .base_evaluator import BaseEvaluator
from .grader import TimeoutException
from .compare_stdio import compare_outputs
class StdIOEvaluator(BaseEvaluator):
def evaluate_stdio(self, user_answer, proc, expected_input, expected_output):
success = False
ip = expected_input.replace(",", " ")
encoded_input = '{0}\n'.format(ip).encode('utf-8')
try:
user_output_bytes, output_err_bytes = proc.communicate(encoded_input)
user_output = user_output_bytes.decode('utf-8')
output_err = output_err_bytes.decode('utf-8')
except TimeoutException:
os.killpg(os.getpgid(proc.pid), signal.SIGTERM)
raise
expected_output = expected_output.replace("\r", "")
success, err = compare_outputs(expected_output,
user_output,
expected_input
)
return success, err
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