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class Evaluator(object):
def evaluate(self, user_answer, proc, expected_input, expected_output):
success = False
ip = expected_input.replace(",", " ")
user_output, output_err = proc.communicate(input='{0}\n'.format(ip))
expected_output = expected_output.replace("\r", "")
if not expected_input:
error_msg = "Expected Output is {0} ".\
format(repr(expected_output))
else:
error_msg = " Given Input is\n {0} \n Expected Output is {1} ".\
format(expected_input, repr(expected_output))
if output_err == '':
if user_output == expected_output:
success, err = True, "Correct Answer"
else:
err = " Incorrect Answer\n" + error_msg +\
"\n Your output is {0}".format(repr(user_output))
else:
err = "Error:"+"\n"+output_err
return success, err
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