printing - Print specific number of rows on Python -

how go printing 10 items per row on python. example, line of code:

for index, item in enumerate (list1):     if item == 'p':         print (index, end=' ') 

i getting result print horizontally, not vertically "end=' ', need print 10 characters per line, result this:

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71  73 79 83 89 97  

any appreciated!

you chunk items:

from itertools import chain, islice  def chunk(iterable, size=10):     """yield chunks of given size iterable."""     iterator = iter(iterable)     in iterator:         yield chain((i,), islice(iterator, size-1))  pitems = (i i, v in enumerate(list1) if v == 'p') chk in chunk(pitems):     print(' '.join(str(n) n in chk)) 

the chunk function splits iterable groups of given size (in case 10). pitems = (...) line filters items want index of. take filtered items, split them groups of 10 using chunk , print each group.