python - Exception Value field is blank when throwing custom exceptions in django -

I have custom exceptions in my MySpace project that look like this:

  class CustomFooError: def __init __ (self, msg = "something went wrong in Foo."): Self.msg = msg def __str __ (self): return repr (self.msg)  

At different points in my code, I will pick up such exceptions:

  increase the customfuck error ("things are running badly")  

When the DJgo catches these errors, debug mode me DJ Go get a standard stack-trace page. But I do not ever see my error messages - "things are running badly" never appear in the Debug Errors page

It looks like they have the exception value on the error page should appear as. I went back through the Denggo source, which is enough to find that it is from value field to sys.exc_info () , which is continuously "[exception ] Has been documented as an affiliate to increase the value or the second argument, which is always a class instance if the exception type is a class object. "Unfortunately, I do not know what to do with this information.

So my question is: How do I write and raise my custom exceptions to get more useful data in places such as Digongo error?

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I will only use super and specify exception msg attribute :

  class CustomFooError (exception): def __init __ (self, msg = none): if msg is none: Msg = 'something went wrong in Fu.' Super (customfuck error, itself) .__ init __ (msg)  

I have tested this from within just a Django environment and it is correctly sent to the exception constructor Displays or passes no default.