https://repl.it/C6U5/3 created by charles2588

PrintSpirals.py

def printsprial(m,n):
	arr=[]
	count=0
	for i in range(m):
		arr.append([])
		for j in range(n):
			count+=1
			arr[i].append(count)
	
	print(arr)
	topwall=0
	rightwall=n-1
	leftwall=0
	bottomwall=m-1
	count=0
	i=1
	while count<m*n:
			if i==1:
				j=leftwall
				while j<=rightwall:
					print(arr[topwall][j])
					count+=1
					j+=1
				topwall+=1
				i=2
			if i==2:
				j=topwall
				while j<=bottomwall:
					print(arr[j][rightwall])
					count+=1
					j+=1
				rightwall-=1
				i=3
			if i==3:
				j=rightwall
				while j>=leftwall:
					print(arr[bottomwall][j])
					count+=1
					j-=1
				bottomwall-=1
				i=4
			if i==4:
				j=bottomwall
				while j>=topwall:
					print(arr[j][leftwall])
					count+=1
					j-=1
				leftwall+=1
				i=1
	
printsprial(4,5)
		 

PrintSpirals_console_dump.txt

Python 3.5.1 (default, Dec 2015, 13:05:11)
[GCC 4.8.2] on linux
>>> [[1, 2, 3, 4, 5], [6, 7, 8, 9, 10], [11, 12, 13, 14, 15], [16, 17, 18, 19, 20]]
1
2
3
4
5
10
15
20
19
18
17
16
11
6
7
8
9
14
13
12
=> None