So this probably highlights my lack of understanding of how naming
works in python, but I'm currently using FailUnlessRaises in a unit
test and raising exceptions with a string exception. It's working
pretty well, except that I get the deprecation warning that raising a
string exception is going to go away. So my question is, how do I
mangle the name of my exception class enough that it doesnt stick the
name of the module before the name of the exception?
Namely I'd like to get the following
***
Traceback (most recent call last):
File "<stdin>", line 1, in ?
MyError: 'oops!'
instead of
***
Traceback (most recent call last):
File "<stdin>", line 1, in ?
__main__.MyError: 'oops!'
(or even test_thingie.MyError as is usually the case).
Creating a class in a separate file and then doing
***
from module import MyError
raise MyError
still gives
***
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
module.MyError
Anyway, any help appreciated.
Would it be cheating to use metaclasses?
# myModule.py
class ExampleType(type):
def __repr__(cls):
return cls.__name__
class ExampleError(Exception):
__metaclass__ = ExampleType
__name__ = 'ExampleError'
def __repr__(self):
return 'ExampleError'
py> import myModule
py> raise myMo
myModule myModule.py myModule.pyc myModule.py~
py> raise myModule.Ex
myModule.ExampleError myModule.ExampleType
py> raise myModule.ExampleError
------------------------------------------------------------
Traceback (most recent call last):
File "<ipython console>", line 1, in <module>
ExampleError
James
It doesnt appear to work for me.
Same exact code as you have but I still get:
>>> raise myModule.ExampleError
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
myModule.ExampleError
James tested his code in the ipython console which obviously uses a
different routine to produce the traceback.
Try
>>> class MyError(Exception):
... __module__ = None
...
>>> raise MyError("oops")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
MyError: oops
Peter
Ah ha! Thanks, that worked great!