Logging my own messages in flask

Question

I was trying to follow the flask error handling tutorial - http://flask.pocoo.org/docs/errorhandling/#logging-to-a-file.

When I try to create the handler I am getting error

[Errno 13] Permission denied: '/var/www/FlaskTest/FlaskTest/store.log'

I just want to log some data to a file for further analysis. What is the easiest way to do this?

EDIT:

Adding some more info: I am running the web application through the wsgi packaging and serving through apache. I understand user roles and need to grant permission :

logfile = logging.FileHandler("/var/www/FlaskTest/FlaskTest/store.log")

As you see I have tried targeting the www directory, should I be targeting another directory? I also don't want to expose the application by giving it unnecessary permissions. Is there a simple way to write objects to a file for later analysis in flask?

This typically means that process running your flask application does not have the user permissions to create a new file in /var/www/FlaskTest/FlaskTest, or it does not have the permissions to write to the file /var/www/FlaskTest/FlaskTest/store.log. — Mark Hildreth
– Mark Hildreth, Commented Mar 19, 2014 at 19:21
ok turns out if I am using apache-wsgi I need to tell wsgi to make the changes as here - stackoverflow.com/questions/10566107/… — knk
– knk, Commented Mar 21, 2014 at 7:12

davidism · Accepted Answer · 2014-03-19 19:22:26Z

5

The code is (probably) fine. The error is about OS permissions. The app is running as a user that does not have write permissions to the directory. You need to fix this outside of Flask.

answered Mar 19, 2014 at 19:22

davidism

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