Debugger

The core Debugger component is the standard way to debug your circuits applications. It services two purposes:

• Logging events as they flow through the system.

• Logging any exceptions that might occurs in your application.

Usage

Using the Debugger in your application is very straight forward just like any other component in the circuits component library. Simply add it to your application and register it somewhere (it doesn’t matter where).

Example:

from circuits import Component, Debugger


class App(Component):
    """Your Application"""


app = App()
Debugger().register(app)
app.run()

Sample Output(s)

Here are some example outputs that you should expect to see when using the Debugger component in your application.

Example Code:

from circuits import Event, Component, Debugger


class foo(Event):
    """foo Event"""


class App(Component):

    def foo(self, x, y):
        return x + y


app = App() + Debugger()
app.start()

Run with:

python -i app.py

Logged Events:

<registered[*] (<Debugger/* 27098:App (queued=0) [S]>, <App/* 27098:App (queued=2) [R]> )>
<started[*] (<App/* 27098:App (queued=1) [R]> )>
>>> app.fire(foo(1, 2))
<Value () result=False; errors=False; for <foo[*] (1, 2 )>
>>> <foo[*] (1, 2 )>

Logged Exceptions:

>>> app.fire(foo())
<Value () result=False; errors=False; for <foo[*] ( )>
>>> <foo[*] ( )>
<exception[*] (<type 'exceptions.TypeError'>, TypeError('foo() takes exactly 3 arguments (1 given)',), ['  File "/home/prologic/work/circuits/circuits/core/manager.py", line 561, in _dispatcher\n    value = handler(*eargs, **ekwargs)\n'] handler=<bound method App.foo of <App/* 27098:App (queued=1) [R]>>, fevent=<foo[*] ( )>)>
ERROR <handler[*][foo] (App.foo)> (<foo[*] ( )>) {<type 'exceptions.TypeError'>}: foo() takes exactly 3 arguments (1 given)
  File "/home/prologic/work/circuits/circuits/core/manager.py", line 561, in _dispatcher
      value = handler(*eargs, **ekwargs)