def pal_check_2(s):
'''(str) -> bool
Determine whether a string, s, is a palindrome.
>>> pal_check_2('asdsa')
True
>>> pal_check_2('asd')
False
'''
if len(s) % 2 == 0:
return s[:len(s) // 2] == reverse(s[(len(s) // 2):])
else:
return s[:len(s) // 2] == reverse(s[(len(s) // 2) + 1:])
def test_no_questions(self):
"""
If no questions exist, an appropriate message is displayed.
"""
response = self.client.get(reverse('polls:index'))
self.assertEqual(response.status_code, 200)
self.assertContains(response, "No polls are available.")
self.assertQuerysetEqual(response.context['latest_question_list'], [])
def setUp(self):
"""Define the test client and other test variables."""
self.client = APIClient()
self.bucketlist_data = {'name': 'Go to Ibiza'}
self.response = self.client.post(
reverse('create'),
self.bucketlist_data,
format="json")
def test_past_question(self):
"""
The detail view of a question with a pub_date in the past
displays the question's text.
"""
past_question = create_question(question_text='Past Question.', days=-5)
url = reverse('polls:detail', args=(past_question.id,))
response = self.client.get(url)
self.assertContains(response, past_question.question_text)
def test_future_question(self):
"""
Questions with a pub_date in the future aren't displayed on
the index page.
"""
create_question(question_text="Future question.", days=30)
response = self.client.get(reverse('polls:index'))
self.assertContains(response, "No polls are available.")
self.assertQuerysetEqual(response.context['latest_question_list'], [])
def test_future_question(self):
"""
The detail view of a question with a pub_date in the future
returns a 404 not found.
"""
future_question = create_question(question_text='Future question.', days=5)
url = reverse('polls:detail', args=(future_question.id,))
response = self.client.get(url)
self.assertEqual(response.status_code, 404)
def pal_check_1(s):
''' (str) -> bool
Determine whether a string, s, is a palindrome by comparing the original string to the reversed string.
>>> pal_check_1('strts')
True
>>> pal_check_1('asdf')
False
'''
return s == reverse(s)
def test_two_past_questions(self):
"""
The questions index page may display multiple questions.
"""
create_question(question_text="Past question 1.", days=-30)
create_question(question_text="Past question 2.", days=-5)
response = self.client.get(reverse('polls:index'))
self.assertQuerysetEqual(
response.context['latest_question_list'],
['<Question: Past question 2.>', '<Question: Past question 1.>']
)
def test_past_question(self):
"""
Questions with a pub_date in the past are displayed on the
index page.
"""
create_question(question_text="Past question.", days=-30)
response = self.client.get(reverse('polls:index'))
self.assertQuerysetEqual(
response.context['latest_question_list'],
['<Question: Past question.>']
)
def test_future_question_and_past_question(self):
"""
Even if both past and future questions exist, only past questions
are displayed.
"""
create_question(question_text="Past question.", days=-30)
create_question(question_text="Future question.", days=30)
response = self.client.get(reverse('polls:index'))
self.assertQuerysetEqual(
response.context['latest_question_list'],
['<Question: Past question.>']
)
def test_signup_status_code(self):
url = reverse('signup')
response = self.client.get(url)
self.assertEquals(response.status_code, 200)
def get_absolute_url(self):
return reverse("detail", kwargs={"id": self.id})
def setUp(self):
self.client = Client()
self.url = reverse('index')
messages.success(request, f'Updated {size.upper()} {product.name} quantity to {bag[item_id]["items_by_size"][size]}')
else:
del bag[item_id]['items_by_size'][size]
if not bag[item_id]['items_by_size']:
bag.pop(item_id)
messages.success(request, f'Removed size {size.upper()} {product.name} from your bag')
else:
if quantity > 0:
bag[item_id] = quantity
messages.success(request, f'Updated {product.name} quantity to {bag[item_id]}')
else:
bag.pop(item_id)
messages.success(request, f'Removed {product.name} from your bag')
request.session['bag'] = bag
return redirect(reverse('view_bag'))
def remove_from_bag(request, item_id):
"""Remove the item from the shopping bag"""
try:
product = get_object_or_404(Product, pk=item_id)
size = None
if 'product_size' in request.POST:
size = request.POST['product_size']
bag = request.session.get('bag', {})
if size:
del bag[item_id]['items_by_size'][size]
if not bag[item_id]['items_by_size']:
def main():
"""Main"""
print "Enter any word and I'll spell it out backwards."
inputStr = raw_input("Please, enter a word: ")
print "%s" % reverse(inputStr)
try:
selected_choice =
question.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist)
# Повторное загрузка окна формы опроса
return render(request, 'polls/detail.html', { # возвращает словарь со значениями
'question': question,
'error_messages': "You didn't select a choice"
})
else:
selected_choice.votes += 1
selected_choice.save()
#Всегда возвращай HttpResponceRedirect after successfully
# with post data избегаем повторную публикацию данных
#user hits the back button
return HttpResponseRedirect(reverse('polls:results', args=(question.id)))
Разбор:
1 # request.POST['choice'] возвращает индетификатор выбранного варианта строки, всегда возвращает строку
2 # request.POST['choice'] будет вызывать KeyError если ключ choice не был представлен в POST будет повторно отображать форму вопроса
# сообщение об ошибке если choice на задано
3 # HttpResponseRedirect принимает один аргумент: URL-адрес, на который будет перенаправлен пользователь
#Как указано выше в комментарии Python, вы должны всегда возвращать HttpResponseRedirect после успешной
# обработки данных POST!!!хорошая практика
4 # функцию reverse() в конструкторе HttpResponseRedirect. Эта функция помогает избежать жесткого кодирования URL-адреса в
#функции представления.
# '/polls/3/results/'
#!/home/lazarop/miniconda3/envs/python/bin/python
from reverse import *
reverse("she_sells_seashells.txt")
def test_list():
assert resolve(f"/list").view_name == "emaillist:display"
assert reverse("emaillist:display") == "/list"
def test_add():
assert reverse("emaillist:add") == "/add"
assert resolve("/add").view_name == "emaillist:add"
# Create your views here.
def all_products(request):
""" all Products page view """
products = Product.objects.all()
query = None
if request.GET:
if 'q' in request.GET:
query = request.GET['q']
if not query:
messages.error(request, "You did not enter any search criteria!")
return redirect(reverse('products'))
queries = Q(name__icontains=query) | Q(description__icontains=query) | Q(gender__icontains=query)
products = products.filter(queries)
context = {
'products': products,
'search_term': query,
}
return render(request, 'products/products.html', context)
def product_detail(request, product_id):
""" Showing individual product details """
