How to export Python printed output to txt file at the end of code-CodePudding

I have several thousand lines of code that all ultimately results in a few strings being printed using print() functions. Is there a way to, at the bottom of my code, export everything that has been printed to a txt file?

CodePudding user response：

This will help.

python main.py > output.txt

The operator > redirects the output of main.py from stdout to the regular file output.txt.

CodePudding user response：

You can do this with redirection in your shell or reopening sys.stdout. Here are both ways:

Reopen sys.stdout:

At the beginning of your code, you can use this code:

import sys

sys.stdout = open('logfile', 'w')

# ... rest of your program ...

and everything printed to standard output (including print() calls) will be written to logfile. This method will always work.

Redirection in your shell:

This is my preferred method if you're running the script from the command line every time. In some niche cases, this won't work (ie: the script is being run by some other program), but it will work for 90% of cases. You can simply run your original script like this:

python myFile.py > logfile

and everything will be written to logfile. If for some reason this doesn't work for you, use method #1.