tuples

问题 Getting a type error, 'tuple' object is not callable. Any idea what it could be? (dont worry about the indentation. It copies in weird.) I'm trying to create choices based on PackSize of storeliquor. Views.py: def storeliquor(request, store_id, liquor_id): a = StoreLiquor.objects.get(StoreLiquorID=liquor_id) s = Store.objects.get(StoreID=store_id) x = Order.objects.get(storeID=s, Active=True) y = a.OffPremisePrice c = a.BottleSize g = request.POST.get('OrderAmount', '') b = a.PackSize h = b*2

问题 I have a list of tuples. Each tuple consists of a string and a dict. Now each dict in that, consists of a list of tuples. The size of the list is around 8K entries. Sample data: dataset = [('made of iron oxide', {'entities': [(12, 16, 'PRODUCT'), (17, 20, 'PRODUCT'), (15, 24, 'PRODUCT'), (12, 19, 'PRODUCT')]}),('made of ferric oxide', {'entities': [(10, 15, 'PRODUCT'), (12, 15, 'PRODUCT'), (624, 651, 'PRODUCT'), (1937, 1956, 'PRODUCT')]})] From here output expected is: dataset = [('made of

问题 I have a list of tuples. Each tuple consists of a string and a dict. Now each dict in that, consists of a list of tuples. The size of the list is around 8K entries. Sample data: dataset = [('made of iron oxide', {'entities': [(12, 16, 'PRODUCT'), (17, 20, 'PRODUCT'), (15, 24, 'PRODUCT'), (12, 19, 'PRODUCT')]}),('made of ferric oxide', {'entities': [(10, 15, 'PRODUCT'), (12, 15, 'PRODUCT'), (624, 651, 'PRODUCT'), (1937, 1956, 'PRODUCT')]})] From here output expected is: dataset = [('made of

问题 val m = scala.collection.mutable.Map[String, Int]() // this doesn't work m += ("foo", 2) // this does work m += (("foo", 2)) // this works too val barpair = ("bar", 3) m += barpair So what's the deal with m += ("foo" , 2) not working? Scala gives the type error: error: type mismatch; found : java.lang.String("foo") required: (String, Int) m += ("foo", 2) ^ Apparently Scala thinks that I am trying to call += with two arguments, instead of one tuple argument. Why? Isn't it unambiguous, since I

问题 I'm working with sets of integer matrices, and I thought representing them as tuples made sense, as they are hashable. However the hash() function gave me strange results for tuples: hash(((1, -1, 0), (1, 0, 0), (1, 0, -1))) Out[147]: -697649482279922733 hash(((1, 0, -1), (1, 0, 0), (1, -1, 0))) Out[148]: -697649482279922733 As you can see, these two different tuples have the same hash value. Note that they are actually pretty similar (exchange of the first and last subtuples), however I

问题 I have a situation where I want to create a mapping from a tuple to an integer. In python, I would simply use a tuple (a,b) as the key to a dictionary, Does Javascript have tuples? I found that (a,b) in javascript as an expression just returns b (the last item). Apparently this is inherited from C. So, as a workaround, I thought I can use arrays instead, my_map[[a,b]] = c I tried it at the Firebug console and it seemed to work. Is that a good way to do it? Another alternative I thought of is

问题 I'm trying to plot a voronoi diagram with real time data, but get the error: IndexError: tuple index out of range the code: data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes data = str(data, "utf-8") #convert bytes into string and fix the 'b' #data.decode("utf-8", errors="ignore") data = data.strip(" ").split(".") x = data[0] y = data[1] x = float(x.replace( ',', '.')) y = float(y.replace( ',', '.')) vor = Voronoi(x,y) The value of the data variable is like this: [b' 0,2036377.2

问题 I am having an issue with finding a tuple element, in a vector of tuples. I have a vector<tuple<int,int,int,int>> in which I need to find the position in the vector where get<0>(vector) = 0 . I need the position, as I need to extract the other values from the tuple in that position as well. The value of get<0> is unique and will only occur once in the vector. How do I do that? 回答1: You should use the std::find_if algorithm; std::vector<std::tuple<int,int,int,int>> v = {{0,1,2,3},{1,2,3,4},{2

问题 I am having an issue with finding a tuple element, in a vector of tuples. I have a vector<tuple<int,int,int,int>> in which I need to find the position in the vector where get<0>(vector) = 0 . I need the position, as I need to extract the other values from the tuple in that position as well. The value of get<0> is unique and will only occur once in the vector. How do I do that? 回答1: You should use the std::find_if algorithm; std::vector<std::tuple<int,int,int,int>> v = {{0,1,2,3},{1,2,3,4},{2

问题 I have a list of tuples: self.gridKeys = self.gridMap.keys() # The keys of the instance of the GridMap (It returns the product of every possible combination of positions in the specified grid, in tuples.) print self.gridKeys self.gridKeys: [(7, 3), (6, 9), (0, 7), (1, 6), (3, 7), (2, 5), (8, 5), (5, 8), (4, 0), (9, 0), (6, 7), (5, 5), (7, 6), (0, 4), (1, 1), (3, 2), (2, 6), (8, 2), (4, 5), (9, 3), (6, 0), (7, 5), (0, 1), (3, 1), (9, 9), (7, 8), (2, 1), (8, 9), (9, 4), (5, 1), (7, 2), (1, 5),