TypeError: 'file' object is not subscriptable python

[Gonzalo Gonza]

When I execute this code (if the number finishes in 2 returns true, else none)

def asdf(n):
	n=str(m)
	elif m[-1]==2:
		return True

I get the following Error:

Traceback (most recent call last):
File "C:\***\***.py", line 3, in asdf
    elif int(m[-1])==2:
TypeError: 'file' object is not subscriptable

I also tried

elif int(m[-1])==2:

But's the same

[bvdet]

Variable m is not defined in function asdf(). Maybe you meant def asdf(m):?

To return an index of an object, the object must be a sequence type such as a string, list or tuple.