how to add for loop in python

1for i in range(1,10,2): #(initial,final but not included,gap)
2  print(i); 
3  #output: 1,3,5,7,9
4  
5for i in range (1,4): # (initial, final but not included)
6  print(i);
7  #output: 1,2,3 note: 4 not included
8
9for i in range (5):
10  print (i);
11  #output: 0,1,2,3,4 note: 5 not included
12
13python = ["ml","ai","dl"];  
14for i in python:
15  print(i);
16  #output:  ml,ai,dl
17  
18for i in range(1,5):	#empty loop...if pass not used then it will return error
19  pass; 	
20  

1for i in range(1,2,3): #you can change 1,2,3
2  print(i)