How do I set an array to the length of a number?

Question

I am a very amateur programmer, and I want to make an array full of 0s, that is the length of a number.

How do I do that?

`[0] * num` - but note that for array of arrays (or other mutable objects) you'd need `[[] for _ in range(num)]` — Amadan, Oct 19 '18 at 10:53
Possible duplicate of [Create an empty list in python with certain size](https://stackoverflow.com/questions/10712002/create-an-empty-list-in-python-with-certain-size) — awesoon, Oct 19 '18 at 10:57

score 0 · Answer 1 · answered Oct 20 '18 at 06:49

0

here is how you can do that

i=7; arr=[0]*i;

answered Oct 20 '18 at 06:49

Yatin Darmwal

score 0 · Answer 2 · answered Oct 20 '18 at 06:59

0

Create a list and use a for loop to fill it with 0's.

my_list = []

for _ in range(n):
  my_list.append(0)

answered Oct 20 '18 at 06:59

William Buck

score 0 · Answer 3 · answered Oct 20 '18 at 06:59

0

In [1]: a = [0] * 7     # if length is 7

In [2]: a
Out[2]: [0, 0, 0, 0, 0, 0, 0]

answered Oct 20 '18 at 06:59

Vishvajit Pathak

3 Answers3