Python - read numbers from text file and put into list

Question

So like the title says im starting to learn some python and im having trouble picking up on this technique. What I need to accomplish is to read in some numbers and store t

Answer 1

One-liner:

[ [int(x) for x in line.split(' ')] for line in open(name,'r').readlines() if line.strip()]

but the readlines part is probably not a great idea.

I'm quite sure that [int(x) for x in ... ] is faster than using map as in other suggested solutions.

Edit

Thanks to Blender : no need for .readlines, which is cool, so we just have :

[ map(int, line.split()) for line in open(name,'r') if line.strip()]

I also used map(int, ) because it's actually faster, and also you can use just line.split() instead of line.split(' ').