TypeError: '_io.TextIOWrapper' object is not subscriptable

Getting the error as the title says. Here is the traceback. I know lst[x] is causing this problem but not too sure how to solve this one. I've searched google + stackoverflow already but did not get the solution I am looking for.

Traceback (most recent call last): File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 30, in <module> main() File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 28, in main print(medianStrat(lst)) File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 24, in medianStrat return lst[x] TypeError: '_io.TextIOWrapper' object is not subscriptable 

Here is the actual code

def medianStrat(lst): count = 0 test = [] for line in lst: test += line.split() for i in lst: count = count +1 if count % 2 == 0: x = count//2 y = lst[x] z = lst[x-1] median = (y + z)/2 return median if count %2 == 1: x = (count-1)//2 return lst[x] # Where the problem persists def main(): lst = open(input("Input file name: "), "r") print(medianStrat(lst)) 

So what could be the solution to this problem or what could be done instead to make the code work? ( The main function that the code should do is to open a file and get the median )

1 Answer

You can't index (__getitem__) a _io.TextIOWrapper object. What you can do is work with a list of lines. Try this in your code:

lst = open(input("Input file name: "), "r").readlines() 

Also, you aren't closing the file object, this would be better:

with open(input("Input file name: ", "r") as lst: print(medianStrat(lst.readlines())) 

with ensures that file get closed, see docs