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# coding=utf-8
from python.util import has_token_sequence
from server.hints import Hint, HintSequence
id = 1000
group = 'introduction'
number = 2
visible = True
solution = '''\
from math import *
g = 10
kot = float(input("Vnesi kot (v stopinjah): "))
v = float(input("Vnesi hitrost (v m/s): "))
kot_rad = kot * 2 * pi / 360
razdalja = v ** 2 * sin(2 * kot_rad) / g
print("Kroglo bo odneslo", razdalja, "metrov.")
'''
#hint_type = {
# 'plan': Hint('plan'),
# 'no_input_call': Hint('no_input_call'),
#}
def test(python, code):
# List of inputs: (expression to eval, stdin).
test_in = [
(None, '45\n100\n'),
(None, '44\n100\n'),
(None, '46\n100\n'),
(None, '0\n100\n'),
(None, '90\n100\n'),
(None, '32\n747\n'),
#(None, '212\n'),
#(None, '-459.4\n'),
#(None, '98.6\n'),
#(None, '1832\n'),
]
test_out = [
'1000',
'999.39'
'999.39'
#'100',
#'-273',
#'37',
#'1000'
]
# 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]
print (answers)
n_correct = 0
for output, correct in zip(outputs, test_out):
if correct in output:
n_correct += 1
return n_correct, len(test_in)
def hint(python, code):
# run one test first to see if there are any exceptions
test_in = [(None, '212\n')]
exc = python(code=code, inputs=test_in, timeout=1.0)[0][3]
# have an exception!
if exc:
if 'NameError' in exc:
return [{'id':'name_error'}]
if 'not callable' in exc:
return [{'id':'not_callable'}]
if 'unsupported operand' in exc:
return [{'id':'unsupported_operand'}]
if 'SyntaxError' in exc:
return [{'id':'syntax_error'}]
if 'IndentationError' in exc:
return [{'id':'indentation_error'}]
# the trick is to decide when to show the plan and when the first hint.
# I implemented a simple idea: show plan, when code contains something from the
# solution, but not input.
if not code or (not has_token_sequence(code, ['input']) and
(has_token_sequence(code, ['32']) or
has_token_sequence(code, ['=', '5']) or
has_token_sequence(code, ['print']))):
return [{'id': 'plan'}]
# if input is not present in code, student needs to learn about input
if not has_token_sequence(code, ['input']):
return [{'id': 'no_input_call'}]
# if tokens * or / or = are not in code, we have to teach them how to
# evaluate expressions.
if (not has_token_sequence(code, ['/']) or
not has_token_sequence(code, ['*']) or
not has_token_sequence(code, ['='])):
return [{'id' : 'expressions_python'}]
# student is not using print function
if not has_token_sequence(code, ['print']):
return [{'id' : 'printing'}]
return None
|
