How to redirect stderr in Python?

Question

I would like to log all the output of a Python script. I tried:

import sys

log = []

class writer(object):
    def write(self, data):
        log.append(dat         


        

Answer 1

Actually, if you're using linux/mac os, you can just use file redirect to do that. For example, if you're going to run "a.py" and record all the messages it will generate into file "a.out", it would just be

python a.py 2>&1 > a.out

The first part redirects stderr to stdout, and the second redirects that to a file called a.out.

For a longer list of redirection operators in Linux/Unix, see https://askubuntu.com/questions/420981/how-do-i-save-terminal-output-to-a-file