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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 = 20610
number = 11
visible = True
solution = '''\
import collections
def following_words(txt):
words = txt.split()
freq = collections.defaultdict(list)
for word, next_word in zip(words, words[1:]):
freq[word].append(next_word)
return freq
'''
hint_type = {
'final_hint': Hint('final_hint')
}
def test(python, code):
func_name = 'following_words'
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 = [
('in in in in', {'in': ['in', 'in', 'in']}),
('in to in ono in to smo mi', {'smo': ['mi'], 'to': ['in', 'smo'],
'ono': ['in'], 'in': ['to', 'ono', 'to']}),
('danes je lep dan danes sije sonce',
{'lep': ['dan'], 'je': ['lep'], 'dan': ['danes'],
'danes': ['je', 'sije'], 'sije': ['sonce']}),
]
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)):
corr = dict(ans[0]) == to
n_correct += corr
if not corr:
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
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