Old vs new file reading

gistfile1.txt

#!/usr/bin/python3
#
# We want to open the file specified and read the data out of it.
import sys

def old_way(filename):
  fd = open(filename)
  if not fd:
    print("error of some kind")
    sys.exit(1)
  # If we were also writing to the file we might throw an exception and need to handle that
  return fd.read()
  
def new_way(filename):
  # This is a context manager
  with open(filename) as fd:
    return fd.read()