Creating lazy properties outside the request handler

[wataka]

Where can one create globally available properties/variables in
Tornado that can vary during runtime? I cannot use the request
handlers because a third party module would need need to use this data
for some calculations before passing it on the a request handler if
necessary. The settings instance is only read once when the
application is started, that would not work. Any ideas?

Thanks

[Aleksandar Radulovic]

How about the application class itself? Every handler has access to
the application its running under.

-alex

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[Emilio Daniel González]

Hi Wataka! As Alex suggests, I use the application instance:

Into a handler method...

self.application.<your needed attribute> = <your cross handlers data>

Take in account that is a good practice having multiple instance of tornado, in that escenario you'll need to manage your common data with another solution.

~e

[wataka]

Thanks guys!