CODEWITHSUNDEEP
pythondebuggingloggingtornado
lorenzo
lorenzo

Reputation: 606

Enable Tornado client debug log/mode

How do I enable any debug log with Tornado client?

For the server case you simply pass Debug=true to the Application constructor (see here). But what about the client?

From this doc, under "Client-side support", it seems like the correct, and only?, way to create a client is to invoke the websocket_connect method. Are there any different ways to create a client?

Here is what I tried:

Pass: 

--logging=debug --log-file-prefix=/var/log/tlog

on the command line and use 

tornado.options.parse_command_line()

A file called tlog is created but it's always empty.

Setting:

define("debug", True)

access_log = logging.getLogger("tornado.access")
access_log.setLevel(logging.DEBUG)
app_log = logging.getLogger("tornado.application")
app_log.setLevel(logging.DEBUG)
gen_log = logging.getLogger("tornado.general")
gen_log.setLevel(logging.DEBUG)

in my code.

(See this post for the specific problem I'm trying to debug and my current code)

Upvotes: 2

Views: 3158

Answers (1)

Ben Darnell
Ben Darnell

Reputation: 22134

The Application(debug=True) option doesn't have anything to do with debug logging. Logging is controlled by the --logging flag (if you use parse_command_line()), and --logging=debug sets it to the most verbose level. There are simply very few logging lines in the client-side websocket code; if you're seeing empty log files then you're just not hitting any of them. You can verify this by adding calls to logging.debug() to your own code after parse_command_line.

Upvotes: 4

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