>>> mylist = [[1, 'one'], [2, 'two'], [3, 'three'], 'four', 5]
>>> 
>>> for i, e in enumerate(mylist):
...     if isinstance(e, list):
...         print(i, 'element =', len(e))
... 
0 element = 2
1 element = 2
2 element = 2
>>>

mylist = [[1, 'one'], [2, 'two'], [3, 'three'], 'four', 5]
i=0
while i<len(mylist):
	a=mylist[i]
	if type(len(a))==int:
		print(1)
	else:
		b=len(a)
		i+=1
		print(i,'element =', b)
	
input('enter')