如何将 Python 脚本控制台 output 保存到文件中？

Question

I want to run a Python script and save its console output to a file, while still being able to see the output in the console. For example, a "Hello World" script as simple as print('Hello World') would show Hello World in the console and also save this output to a file.

I was previously using pythonscript.py > console_output.txt to shell redirect, I can't see anything in the console with this solution (and for some reason, it no longer saves anything to the specified file, no idea why). This is a solution using Linux shell redirection, but now I would like to write a separate python script to do it.

I don't think I need any special error logging stuff. I'm currently using try: except blocks and just printing the Exception and then using that to find the error.

Answer 1

Try tee command, for example: pythonscript.py | tee console_output.txt pythonscript.py | tee console_output.txt

Answer 2

You can do you something like this:

def custom_print(message_to_print, log_file='output.txt'):
    print(message_to_print)
    with open(log_file, 'a') as of:
        of.write(message_to_print + '\n')

This way you can use custom_print instead of print to be able to both see the result in the console and have the result appended to a log file.