Why can't I force an int to be a string?

[fad3r]

I want E to be string instead of a integer so that list1 can be used in zip otherwise I get:

File "C:/Users/c0unt3rpl4y/PycharmProjects/House/Challenges/Archive/Challenge 6.py", line 52, in <module>
list(list1)
TypeError: 'int' object is not iterable

That is with me trying to use the list command on list1.

If I remove that (turning list1 into a list) which was my other try I get:

output_dict=zip(list1, input_list)
TypeError: zip argument #1 must support iteration

Basically I need the result of E to become a string so that i can use it in zip later.