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from python.util import has_token_sequence, string_almost_equal, \
string_contains_number, get_tokens, get_numbers, get_exception_desc
from server.hints import Hint
import re
id = 20107
number = 7
visible = True
solution = '''\
leto = int(input("Vnesi leto: "))
if leto % 4 == 0 and (leto % 100 != 0 or leto % 400 == 0):
print("Je prestopno")
else:
print("Ni prestopno")
'''
hint_type = {
'mod_expression': Hint('mod_expression'),
'printing': Hint('printing'),
'name_error': Hint('name_error'),
'unsupported_operand': Hint('unsupported_operand'),
'final_hint': Hint('final_hint'),
}
def test(python, code, aux_code=''):
# List of inputs: (expression to eval, stdin).
test_in = [
(None, '1900\n'),
(None, '1950\n'),
(None, '2000\n'),
(None, '2016\n'),
(None, '2100\n'),
]
test_out = [
"Ni prestopno",
"Ni prestopno",
"Je prestopno",
"Je prestopno",
"Ni prestopno"
]
# List of outputs: (expression result, stdout, stderr, exception).
answers = python(code=aux_code+code, inputs=test_in, timeout=1.0)
outputs = [ans[1] for ans in answers]
n_correct = 0
tin = None
for i, (output, correct) in enumerate(zip(outputs, test_out)):
if correct in output:
n_correct += 1
else:
tin = test_in[i][1]
tout = correct
passed = n_correct == len(test_in)
hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}]
if tin:
hints.append({'id': 'problematic_test_case', 'args': {'testin': str(tin), 'testout': str(tout)}})
if passed:
hints.append({'id': 'final_hint'})
return passed, hints
def hint(python, code, aux_code=''):
tokens = get_tokens(code)
# run one test first to see if there are any exceptions
test_in = [(None, '212\n')]
answer = python(code=aux_code+code, inputs=test_in, timeout=1.0)
exc = answer[0][3]
exc_hint = get_exception_desc(answer[0][3])
if exc:
if 'NameError' in exc:
return [{'id':'name_error', 'args': {'message': exc}}]
elif 'not callable' in exc:
return [{'id':'not_callable', 'args': {'message': exc}}]
elif 'unsupported operand' in exc:
return [{'id':'unsupported_operand', 'args': {'message': exc}}]
elif 'TypeError' in exc:
return [{'id':'unsupported_operand', 'args': {'message': exc}}]
else:
return exc_hint
# if token % not in code, we have to teach them how to
# evaluate expressions.
if (not has_token_sequence(tokens, ['%'])):
return [{'id' : 'mod_expression'}]
# student is not using print function
if not has_token_sequence(tokens, ['print']):
return [{'id' : 'printing'}]
return None
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