Only except block get executed

# Write a Python program to get the file size of a plain file
import os
file= input("Enter file name: ") 
try:  
    with open(file) as f:
       size=os.path.getsize(f)
       print("File Size is :",f, "bytes")
except:
    print('File cannot be opened:', file)

Exception has occurred: TypeError
stat: path should be string, bytes, os.PathLike or integer, not TextIOWrapper