tuples Questions
2
I have a piece of Python code:
def func1():
a=set()
b = ','.join(map(str, list(a)))
return b, []
def func2():
d = 1
e = 2
return func1() + (d, e,)
def main():
a,b,c,d = func2()
if __name...
7
Solved
How do I reverse the types in a tuple? For example, I want reverse_tuple<std::tuple<int, char, bool>>::type to be std::tuple<bool, char, int>. I tried doing the following but it d...
Namedropping asked 18/6, 2013 at 20:15
12
Solved
I'm wondering if I can somehow use an x, y pair as the key to my dictionary
let activeSquares = Dictionary <(x: Int, y: Int), SKShapeNode>()
But I get the error:
Cannot convert the expres...
Kimberleykimberli asked 10/6, 2014 at 0:59
9
Solved
Does python have immutable lists?
Suppose I wish to have the functionality of an ordered collection of elements, but which I want to guarantee will not change, how can this be implemented? Lists a...
Suomi asked 21/6, 2012 at 16:15
10
Solved
How would I be able to take a string like 'aaaaaaaaaaaaaaaaaaaaaaa'
and split it into 4 length tuples like (aaaa,aaaa,aaaa)
5
Solved
I tried to find the available methods but couldn't find it. There is no contains. Should I use index? I just want to know if the item exists, don't need the index of it.
Perionychium asked 29/7, 2013 at 9:16
2
Solved
>>> a=1
>>> b=1
>>> id(a)
140472563599848
>>> id(b)
140472563599848
>>> x=()
>>> y=()
>>> id(x)
4298207312
>>> id(y)
42...
Vtol asked 13/12, 2014 at 14:6
5
Solved
How do I convert this dataframe
location value
0 (Richmond, Virginia, nan, USA) 100
1 (New York City, New York, nan, USA) 200
to this:
city state region country value
0 Richmond Virgini...
9
Solved
C# 7.0 introduced value tuples and also some language level support for them. They added the support of single and zero element tuples as well; however, I could not find out any scenario when they ...
4
Solved
not sure if this is possible, but I would like to be able to define a type that converts tuples like: [number, string, undefined, number] to [number, string, number] (ie filter out undefined).
I t...
Northing asked 9/2, 2019 at 14:55
11
I'm working on a script where I have a list of tuples like ('1','2','3','4'). e.g.:
list = [('1','2','3','4'),
('2','3','4','5'),
('3','4','5','6'),
('4','5','6','7')]
Now I need to add '1234...
1
Solved
Background:
I'm trying to port a library to compile on MSVC.
That library stores data in a tuple of vectors (std::tuple<std::vector<Ts>...>), and uses a custom iterator to iterate over ...
Maples asked 17/8, 2023 at 13:24
5
Solved
Currently I'm doing this:
def getJSONString(lst):
join = ""
rs = "{"
for i in lst:
rs += join + '"' + str(i[0]) + '":"' + str(i[1]) + '"'
join = ","
return rs + "}"
which I call like:
rs ...
3
Solved
I have a list in C# called MyList:
List<Tuple<string, int, int>> MyList= new List<Tuple<string, int, int>>()
{
Tuple.Create("Cars", 22, 3),
Tuple.Create("Cars", 28, 5),...
9
Solved
I am creating a database connection.
While trying to add to the DB, I am thinking of creating tuples out of information and then add them to the DB.
I am taking information from the user and store ...
2
Solved
A list can be created n times:
a = [['x', 'y']]*3 # Output = [['x', 'y'], ['x', 'y'], ['x', 'y']]
But I want to make a tuple in such a way but it not returning the similar result as in the list....
7
Solved
I have the following element of a list, and the list is 100 elements long.
[(50, (2.7387451803816479e-13, 219))]
How do I convert each element to look like this?
[(50, 2.7387451803816479e-13, ...
4
Solved
If I want to unpack a tuple and pass it as arguments is there a way to do this:
//Does not compile
fn main() {
let tuple = (10, Vec::new());
foo(tuple);
}
fn foo(a: i32, b: Vec<i32>) {
//...
3
Solved
My general understanding is that a tuple is a row. However, I'm using the Postgres dev plan in Heroku. It has a limit of 10,000 rows. I have over 100,000 entries for n_live_tup. How can this be?
Hardiman asked 5/11, 2013 at 21:24
15
Solved
Is there anyway to get tuple operations in Python to work like this:
>>> a = (1,2,3)
>>> b = (3,2,1)
>>> a + b
(4,4,4)
instead of:
>>> a = (1,2,3)
>>&g...
2
t = (1,2,3)
t1 = (1,2,3)
print(id(t))
print(id(t1))
The above lines of code gives the same addresses in script mode in Python, but in interactive mode it outputs different addresses. Can anyone e...
Ecker asked 11/6, 2020 at 15:20
7
Solved
I would like do something like that.
list_of_urls = ['http://www.google.fr/', 'http://www.google.fr/',
'http://www.google.cn/', 'http://www.google.com/',
'http://www.google.fr/', 'http://www.g...
10
Solved
I am trying to pull data from a database and assign them to different lists.
This specific error is giving me a lot of trouble "TypeError: tuple indices must be integers, not str"
I tried...
8
Sorry in advance, but I'm new to Python. I have a list of tuples, and I was wondering how I can reference, say, the first element of each tuple within the list. I would think it's something like
...
7
Solved
I'm working with C# and .NET Framework 4.5.1 retrieving data from a SQL Server database with Entity Framework 6.1.3.
I have this:
codes = codesRepo.SearchFor(predicate)
.Select(c => new Tuple...
Hydrocarbon asked 5/11, 2015 at 13:1
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