Disable console messages in Flask server

Question

I have a Flask server running in standalone mode (using app.run()). But, I don\'t want any messages in the console, like

127.0.0.1 - - [15/Feb/2         


        

Answer 1

None of the other answers worked correctly for me, but I found a solution based off Peter's comment. Flask apparently no longer uses logging for logging, and has switched to the click package. By overriding click.echo and click.secho I eliminated Flask's startup message from app.run().

import logging

import click
from flask import Flask

app = Flask(__name__)

log = logging.getLogger('werkzeug')
log.setLevel(logging.ERROR)

def secho(text, file=None, nl=None, err=None, color=None, **styles):
    pass

def echo(text, file=None, nl=None, err=None, color=None, **styles):
    pass

click.echo = echo
click.secho = secho

@app.route("/")
def hello():
    return "Hello World!"

if __name__ == "__main__":
    app.run()

Between setting the logging level to ERROR and overriding the click methods with empty functions, all non-error log output should be prevented.

Answer 2

Late answer but I found a way to suppress EACH AND EVERY CONSOLE MESSAGE (including the ones displayed during an abort(...) error).

import os
import logging

logging.getLogger('werkzeug').disabled = True
os.environ['WERKZEUG_RUN_MAIN'] = 'true'

This is basically a combination of the answers given by Slava V and Tom Wojcik

Answer 3

In case you are using WSGI server , please set the log to None

gevent_server = gevent.pywsgi.WSGIServer(("0.0.0.0", 8080), app,log = None)

Answer 4

This solution provides you a way to get your own prints and stack traces but without information level logs from flask suck as 127.0.0.1 - - [15/Feb/2013 10:52:22] "GET /index.html HTTP/1.1" 200

from flask import Flask
import logging

app = Flask(__name__)
log = logging.getLogger('werkzeug')
log.disabled = True

Answer 5

@Drewes solution works most of the time, but in some cases, I still tend to get werkzeug logs. If you really don't want to see any of them, I suggest you disabling it like that.

from flask import Flask
import logging

app = Flask(__name__)
log = logging.getLogger('werkzeug')
log.disabled = True
app.logger.disabled = True

For me it failed when abort(500) was raised.

Answer 6

To suppress Serving Flask app ...:

os.environ['WERKZEUG_RUN_MAIN'] = 'true'
app.run()