2d list in python

Create a 2d array in python

def build_matrix(rows, cols):
    matrix = []

    for r in range(0, rows):
        matrix.append([0 for c in range(0, cols)])

    return matrix

if __name__ == '__main__':
    build_matrix(6, 10)

How to create 2d list in python

o=[]
for i in range(0,rows):
    x=[]
    for j in range(0,cols):
        x.append(0)
    o.append(x)
#if you use [[0]*cols]*rows all rows will become the same list
#so editing in one row will edit all rows

Python initialize a 2d array

x = [[foo for i in range(10)] for j in range(10)]
# x is now a 10x10 array of 'foo' (which can depend on i and j if you want)

Source: stackoverflow.com

2d array python3

# 5x6, 2-d array of booleans using list comprehension:

matrix = [[False for col in range(6)] for row in range(5)]

# 6x5, 2-d array of banana's using list comprehension:

matrix = [['banana' for col in range(5)] for row in range(6)]

How to input 2-d array in python

matrix = [input().split() for i in range(no_of_rows)] # if only row is given and the number of coloumn has to be decide by user
matrix= [[input() for j in range(no_of_cols)] for i in range(no_of_rows)] # if both row and coloumn has been taken as input from user

2d list in python

def list_2D(r, c):
    l = []
    for i in range(r):
        x = [0] * c
        l.append(x)
    return l

Similar codes

0 vote349 views1 answer
Flask extends two base.html
Python
0 vote206 views1 answer
Open file rw python
Python
0 vote215 views1 answer
Find Files With a Certain Extension in the Directory and Its Subdirectories in Python
Python
-2 votes190 views1 answer
Python IOError
Python
7 votes172 views3 answers
Make exe file pycharm
Python
0 vote180 views1 answer
How to make a operating system in python
Python
0 vote184 views1 answer
Sigmoid prime Python
Python
0 vote169 views1 answer
How to code discord bot 8ball python
Python
0 vote171 views1 answer
How to view back of list in python
Python
0 vote220 views1 answer
Python package for misspelled words
Python