How to print i for i in list in python? it gives generator object

Question

I am trying to print out all the elements of a list one by one, like this

a=[1,2,3]

print(i for i in a)

how do i print out

1 
2
3

Answer 1

You want to use a for-loop here, not a generator expression:

>>> a = [1, 2, 3]
>>> for i in a:
...     print(i)
...
1
2
3
>>> # As a one-liner
>>> for i in a: print(i)
...
1
2
3
>>>

---

Or, if you want to get fancy, you can use just print and argument unpacking:

>>> a = [1, 2, 3]
>>> # This is the same as doing:  print(1, 2, 3, sep="\n")
>>> print(*a, sep="\n")
1
2
3
>>>

Answer 2

Here are two ways you can accomplish what you want.

a = [1, 2, 3]

for a_val in a:
    print a_val

for i in range(0, len(a)):
    print a[i]