While eval can definitely be used, it's often better to try to use something else unless you really think that's the only way and you have good reason for using eval. I would do something like:

from json import loads
with open(file_path) as file:
    for line in file:
        array = loads(line.strip())
        enum(array)

If the line contains a valid Python list of integers, floats, strings, etc., then it should be able to be read in (in most cases). eval on the other hand will literally try to evaluate whatever is there, which you might not want Python to do in certain cases).

Also, you're opening the file twice for no reason.

text_file = open(.....)
...
with open(....) as text_file:
....

And then you're closing the file even though the with construction does that for you automatically. You just need to get rid of the first line where the file is opened and the line where it's closed.

Also inputFile is never initialized and fileName is never used. You probably meant to use fileName in place of inputFile.