/Python/How to find the neighbors of an element in matrix python

How to find the neighbors of an element in matrix python

mat = "NxN matrix"
a, b = (2, 3) # the index of the element 
neighbors = [mat[i][j] for i in range(a-1, a+2) for j in range(b-1, b+2) if i > -1 and j > -1 and j < len(mat[0]) and i < len(mat)]

Similar codes

0 vote333 views1 answer
Install aws sdk ubuntu 20.04 command line
Python
0 vote326 views1 answer
Any(iterable)
Python
5 votes326 views1 answer
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9e in position 3359: character maps to <undefined>
Python
6 votes315 views2 answers
Panda search strings in column
Python
0 vote312 views1 answer
How to find most repeated word in a string in python
Python
12 votes334 views6 answers
Remove empty strings from list python
Python
0 vote343 views1 answer
How to check what version of pygame you have instaled
Python
0 vote325 views1 answer
Como fazer print no python
Python
0 vote351 views1 answer
Django composer
Python Django
0 vote321 views1 answer
Python colorbar for circular heatmap
Python