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# coding=utf-8
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, HintSequence
id = 190
group = 'introduction'
number = 5
visible = True
solution = '''\
from time import time
zacetek = time()
rezultat = float(input("Koliko je 7*6? "))
konec = time()
cas = koneczacetek
print ("Vpisal si ", rezultat, ". Za razmišljanje si porabil ", cas, " s.")
'''
hint_type = {
'name_error': Hint('name_error'),
'type_error': Hint('type_error'),
'error': Hint('error'),
'time': Hint('time'),
'time_diff': Hint('time_diff'),
'printing': Hint('printing'),
}
def test(python, code):
# List of inputs: (expression to eval, stdin).
test_in = [
(None, '1\n'),
(None, '2\n'),
(None, '42\n'),
(None, '-42\n'),
(None, '0\n'),
]
test_out = [
1,
2,
42,
-42,
0
]
# List of outputs: (expression result, stdout, stderr, exception).
answers = python(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 string_contains_number(output, correct):
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)}})
return passed, hints
def hint(python, code):
tokens = get_tokens(code)
# run one test first to see if there are any exceptions
test_in = [(None, '212\n')]
answer = python(code=code, inputs=test_in, timeout=1.0)
exc = answer[0][3]
exc_hint = get_exception_desc(answer[0][3])
# if have an exception!
if exc:
if 'NameError' in exc:
return [{'id':'name_error', 'args': {'message': exc}}]
elif 'TypeError' in exc:
return [{'id':'type_error', 'args': {'message': exc}}]
else:
return exc_hint
# First: if student does not import time, tell him about that module
if not has_token_sequence(tokens, ['time']):
return [{'id': 'time'}]
# Student will have to compute time difference and they will need
# the substraction (-) operator to do this. Check for the minus operator.
if not has_token_sequence(tokens, ['-']):
return [{'id' : 'time_diff'}]
if not string_contains_number(answer[0][1], 212):
return [{'id' : 'printing'}]
return None
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