Code:
import urllib2 as u
import os as o
inn = \'dword.txt\'
w = open(inn)
z = w.readline()
b = w.readline()
c = w.readline()
x = w.readline
It is important to note (in case you came here by Google) that "TypeError: 'str' object is not callable" means only that a variable that was declared as String-type earlier is attempted to be used as a function (e.g. by adding parantheses in the end.)
You can get the exact same error message also, if you use any other built-in method as variable name.