simple introduction to Cement framework and its usage. Cement framework is mostly used for creating a command line application using python.

In version 2.6 of Cement you can initiate an app using with:

from cement.core.foundation import CementApp

 with CementApp('myapp') as app:
     app.run()

It hides complexieties in your application initiation. That is the above code would be something like below without using with:

from cement.core.foundation import CementApp

 app = CementApp('myapp')
 app.setup()
 app.run()
 app.close()

As you can see with procedure is more clear and straight forward with less code. I know it's silly to have an app like above, but that's just an introduction to the world of Cement.

To add logger to your framework you need to set log level in log.logging as below:

from cement.utils.misc import init_defaults
 from cement.core.foundation import CementApp

 defaults = init_defaults('myapp', 'log.logging')
 defaults['log.logging']['level'] = 'DEBUG'
 defaults['log.logging']['file'] = 'cementy.log'
 defaults['log.logging']['to_console'] = True

 with CementApp('myapp', config_defaults=defaults) as app:
     app.run()
     app.log.debug('This is debug')

init_defaults is used to setup logging. level sets the log level to DEBUG. file would write log data into cementy.log file.
By setting to_console param you can also write the data written to file into console too. So if you run your python application, a file would be created for logging and data will be printed out.

#python #cement #framework #logging #log #level #foundation