3,141 questions
-3
votes
0
answers
106
views
I want to generate a permutation to check it satisfies an equation before I generate another
I'm writing code to find a convex n-gon with side lengths 1^k,2^k,...,n^k with equal interior angles. If we formulate this as an algebra problem on the complex plane, this is satisfied using the ...
2
votes
1
answer
153
views
How to create possible sets of n numbers from m-sized prime number list?
Input: a list of m prime numbers (with possible repetition), and integers n and t.
Output: all sets of n numbers, where each set is formed by partitioning the input into n parts, and taking the ...
- 26.4k
2
votes
2
answers
92
views
What's the fastest way of skipping tuples with a certain structure in a itertool product?
I have to process a huge number of tuples made by k integers, each ranging from 1 to Max_k.
Each Max can be different.
I need to skip the tuples where an element has reached is max value, in that case ...
- 23
1
vote
1
answer
51
views
How do I use a custom mapping (sort) on my itertools for loop so that I can print specific strings first?
I'm using python itertools specifically to generate combinations of integer strings. I have already created the loop that will loop through the combinations one at a time. I just need someone to help ...
- 77
-1
votes
1
answer
30
views
Tupe video clips list, the other matching durations. Itertools can find triplets that total 90 sec from duration list. Want to print clip names
I can get the triplets with iteration tools in durations list but I want to get matching clips from spots list. Tried to marry two list but dont know how to apply iteration combo on one part of the ...
- 1
1
vote
2
answers
44
views
Dealing with `StopIteration` return from a next() call in Python
I'm using the below to skip a group of records when a certain condition is met:
if (condition met):
...
[next(it) for x in range(19)]
Where it is an itertuples object created to speed up ...
- 1,702
-3
votes
2
answers
65
views
Python itertools product aborting
When running the code below, python aborts and closes the python prompt:
>>> import itertools
>>> nComb = 2
>>> t = range(nComb)
>>> combs = list(itertools.product(...
1
vote
1
answer
60
views
Type hint for itertools.product doesn't know length of elements
I am adding type hints to an old code of mine. However, I find with a "problem" I don't know how to solve. I have a function that looks like:
def f(x: tuple[tuple[int, int], ...]):
...
...
- 291
2
votes
0
answers
102
views
Efficiently Handling Large Combinations in Polars Without Overloading RAM
I have a list of n values (in my case, n=19), and I want to generate all possible combinations of these values. My goal is to use each combination as a filter for a Polars DataFrame, iterate over the ...
- 1,027
1
vote
2
answers
210
views
Finding number of differences between strings in Polars
I have a Polars dataframe in which the cells contain a sequence of single digits as a string of characters, and I want to find the number of differences between the elements of the string. For example:...
- 33
0
votes
0
answers
32
views
Speed Up Mouse Clicking Automation With PyAutoGUI
I have a program where I'm automating mouse clicking in a game. The program consists of four different coordinates on my screen, and iterating through all 3-length permutations of those coordinates ...
- 37
1
vote
1
answer
100
views
Is there an iterator in Python that gives the product but omits permutations of the classes itself?
Assume that I want to assign a color to 5 different balls and have 3 colors r,b and g. I would like to iterate over all these combinations. Preferably I would want to omit combinations that are equal ...
- 159
2
votes
1
answer
56
views
itertools.product in dataframe
Inputs:
arr1 = ["A","B"]
arr2 = [[1,2],[3,4,5]]
Expected output:
short_list
long_list
0
A
1
1
A
2
2
B
3
3
B
4
4
B
5
Current output:
short_list
long_list
0
A
[1, 2]
1
A
[3, 4, 5]...
- 1,076
0
votes
0
answers
23
views
Iterate over dependent iterators together [duplicate]
So here is my scenario:
def gen1(a):
for item in a: ...
- 2,894
0
votes
1
answer
59
views
Python Flask App Freezes with Large Data: Seeking Optimization Advice
I'm developing a Python Flask application to find combinations of numbers from dataset that sum up to a target value. The app works fine with smaller datasets but freezes when processing larger ...
- 1