Where can I check tornado's log file?

Question

I think there was a default log file, but I didn\'t find it yet.

Sometimes the HTTP request process would throw an exception on the screen, but I suggest it also goe

Answer 1

With newer versions, you may do

args = sys.argv
args.append("--log_file_prefix=/opt/logs/my_app.log")
tornado.options.parse_command_line(args)

or as @ColeMaclean mentioned, providing

--log_file_prefix=PATH 

at command line