Why does the length of the elements in the list shrink? [closed]
Solution 1:
As well as what other people have answered, print the list so you can see what Python sees in the list:
>>> print(num)
['a', 'b', 'c', 'd', 'ef']
then you can see where the problem is.
Solution 2:
num = ['a',
'b',
'c',
'd',
'e' //Here should have a comma.
'f']
num_len = len(num)
print(num_len)