Python : clear a log file

Question

I develop a client-server application and I have log in the server, so I use the logging module. I would like to create a command in the server to clear the file.

I have test with os.remove() but after, the log doesn’t work.

Do you have an idea?

Thanks.

Asked By: Guillaume

||

Source

Answer 1

It might be better to truncate the file instead of removing it. The easiest solution is to reopen the file for writing from your clearing function and close it:

with open('yourlog.log', 'w'):
    pass

Answered By: newtover

Answer 2

Just try to add a 'w' as argument:

fh = logging.FileHandler('debug.log', mode='w')
fh.setLevel(logging.DEBUG)
fh.setFormatter(formatter)
logger.addHandler(fh)

This worked for me.

Answered By: Steffen B

Answer 3

Building up on Steffen B’s answer: when using the logging.basicConfig function, one can also use this to rewrite the file instead of appending to it:

logging.basicConfig(
        # specify the filename
        filename=<PATH TO THE FILE>,
        # If filename is specified, open the file in this mode. Defaults to 'a'.
        filemode="w",
    )

More information can be found in the dedicated section of the ‘logging’ module’s documentation.

Answered By: Viggar

Python : clear a log file

Question:

Answers: