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path: root/python/problems/functions/divisors/common.py
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# coding=utf-8

import re
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

id = 230
number = 9
visible = True

solution = '''\
def divisors(n):
    for i in range(1, n):
        if n % i == 0:
            print(i)
'''

hint_type = {
    'final_hint': Hint('final_hint')
}

def test(python, code):
    func_name = 'divisors'
    tokens = get_tokens(code)
    if not has_token_sequence(tokens, ['def', func_name]):
        return False, [{'id' : 'no_func_name', 'args' : {'func_name' : func_name}}]

    in_out = [
        (8, [1,2,4]),
        (6, [1,2,3]),
        (5, [1]),
        (1, []),
        (2, [1]),
        (15, [1,3,5]),
        (20, [1,2,4,5,10])
    ]

    test_in = [(func_name+'(%s)'%str(l[0]), None) for l in in_out]
    test_out = [l[1] for l in in_out]

    answers = python(code=code, inputs=test_in, timeout=1.0)
    n_correct = 0
    tin, tout = None, None
    for i, (ans, to) in enumerate(zip(answers, test_out)):
        numbers = sorted(int(n) for n in get_numbers(ans[1]))
        if numbers == to:
            n_correct += 1
        else:
            tin = test_in[i][0]
            tout = to

    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):
    tokens = get_tokens(code)

    # run one test first to see if there are any exceptions
    answer = python(code=code, inputs=[(None, None)], timeout=1.0)
    exc = get_exception_desc(answer[0][3])
    if exc: return exc

    return None