title: Using python's logging module to log all exceptions and errors
body: <p>I want to check for errors in a particular background file, but the standard error stream is being controlled by the program in the foreground and the errors in the file in the question are not being displayed. I can use the <code>logging</code> module and write output to a file, though. I was wondering how I can use this to log all exceptions, errors and their tracebacks.</p>