Difference between open and codecs.open in Python

Question

There are two ways to open a text file in Python:

f = open(filename)

And

import codecs
f = codecs.open(filename, encoding=\         


        

Answer 1

I was in a situation to open a .asm file and process the file.

#https://docs.python.org/3/library/codecs.html#codecs.ignore_errors
#https://docs.python.org/3/library/codecs.html#codecs.Codec.encode

with codecs.open(file, encoding='cp1252', errors ='replace') as file:

Without much trouble I am able to read the entire file, any suggestions?