tuples Questions
5
Solved
I have a list of tuples like the following:
[(1, 'Red'), (2, 'Yellow'), (6, 'Pink'), (7, 'Blue'), (8, 'Green')]
The numbers in the tuple represent the index. However, since some of the indexes a...
2
Solved
Is there a more efficient, simpler way to create a tuple of lists of length 'n'?
So in Python, if I wanted to create a list of lists I could do something like:
[[] for _ in range(list_length)]
...
4
Solved
I have been reading the Core Python programming book, and the author shows an example like:
(4, 5) < (3, 5) # Equals false
So, I'm wondering, how/why does it equal false? How does python com...
Murmurous asked 13/3, 2011 at 20:52
2
Solved
I know we can declared a named tuples like:
var name = (first:"Sponge", last:"Bob");
However, I cannot figure out how to combined the named tuple with a generic type, such as Dictionary.
I have...
Bybee asked 7/3, 2020 at 21:21
1
Solved
Time complexities for checking membership (x in data_structure) in dictionary, list, and set are listed here:
http://wiki.python.org/moin/TimeComplexity
dict - O(1)
list - O(n)
set - O(1)
But, ...
Nathalie asked 6/3, 2020 at 17:15
8
Solved
What is the most elegant and concise way (without creating my own class with operator overloading) to perform tuple arithmetic in Python 2.7?
Lets say I have two tuples:
a = (10, 10)
b = (4, 4)
...
Stoma asked 2/7, 2013 at 5:39
4
Solved
I have code where I return a list of IWebElements and their corresponding names? My understanding is that a tuple with two items is basically the same thing but the Dictionary uses hash mapping to ...
Riess asked 28/4, 2014 at 17:22
6
Solved
Consider the following Swift code.
var a = [(1, 1)]
if contains(a, (1, 2)) {
println("Yes")
}
All I need is to check if a contains the tuple but the code leads to error.
Cannot find an over...
7
Solved
I have a list of tuples (always pairs) like this:
[(0, 1), (2, 3), (5, 7), (2, 1)]
I'd like to find the sum of the first items in each pair, i.e.:
0 + 2 + 5 + 2
How can I do this in Python? A...
5
Solved
So I have this simple example:
type SomeTuple = [string, number];
const foo = (options: SomeTuple[]) => console.log(options);
const options = [
['first', 1],
['second', 2],
];
const otherO...
Delisle asked 19/2, 2020 at 11:11
7
Solved
Does anyone use tuples in Ruby? If so, how may one implement a tuple? Ruby hashes are nice and work almost as well, but I'd really like to see something like the Tuple class in Python, where you ca...
Feleciafeledy asked 8/2, 2009 at 16:11
1
Solved
I would like to constrain a (tuple) array in JSON-schema, and get decent error messages but so far I was unsuccessful.
The array consists of 2 items, the first is a string, and the second is an ob...
Chirurgeon asked 29/1, 2020 at 22:50
8
Solved
I've just read in "Dive into Python" that "tuples are faster than lists".
Tuple is immutable, and list is mutable, but I don't quite understand why tuple is faster.
Anyone did a performance test ...
Fairman asked 27/7, 2010 at 3:26
7
I have the following ADO Model
Student
Id,Name
and
Course
Id,Name,Student_ID
I have made the following view for it
@model Tuple<MvcApplication4.Models.Course, MvcApplication4.Models.Student ...
Entrepreneur asked 14/11, 2011 at 7:4
6
Solved
Given the Pair val coordinates = Pair(2, 3), is it possible to name each value so I can do something like coordinates.x to return 2? Or is coordinates.first the only way to access that first value?...
7
Solved
I'm following a couple of Pythone exercises and I'm stumped at this one.
# C. sort_last
# Given a list of non-empty tuples, return a list sorted in increasing
# order by the last element in each t...
6
Solved
Sometimes there are needs to create tuples from small collections(for example scalding framework).
def toTuple(list:List[Any]):scala.Product = ...
Gerrilee asked 3/7, 2012 at 6:2
2
Solved
How can I work with tuples in a foreach loop?
The following code doesn't work:
foreach Tuple(x, y) in sql.lineparams(lines)
{
}
sql.lineparams(lines) is array of tuples <int, string>
2
Consider a function defined as:
def fun(a, *args):
print(type(args), args)
When called, it packs the extra positional arguments as a tuple.
>>> fun(2, 3, 4)
<class 'tuple'> (3, ...
Daughterinlaw asked 16/12, 2019 at 15:50
4
Solved
How do I make unique list of tuples by their first values in the most Pythonic way?
Example:
list_of_tuples = [('a', 1), ('a', 2), ('b', 3)]
# Apply here magical Pythonic one liner.
print...
Delores asked 13/12, 2019 at 7:12
1
Solved
How to map a tuple generic type to a union type?
type NeededUnionType<T> = T[keyof T]; // Includes all the Array properties values
const value: NeededUnionType<[7, string]> = 2; // Th...
Aeropause asked 8/12, 2019 at 20:30
5
Solved
Consider the following expressions:
new Tuple<int,int>(1,2);
Tuple.Create(1,2);
Is there any difference between these two methods of Tuple creation? From my reading it seems to be more a ...
2
Solved
I am still learning Python and currently solving a question on Hackerrank where I am thinking of converting input(String type) to tuple by using built-in function(tuple(input.split(" ")).
For exa...
Fantail asked 9/12, 2015 at 0:38
2
Solved
I know there has to be a clever way to do this in Julia but I'm stumped. I have a 1d array of tuples and I want to extract the third element from each row of the array. Here is an example of what I...
7
Solved
If I have std::tuple<double, double, double, ...> (where the types are homogeneous), is there a stock function or constructor to convert to std::array<double, N>?
I was able to get it w...
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