3120.sagews

class Throws:
    def __init__(self, error, name=None):
        self.error = error
        if name==None:
            name=error.__name__
        self.name = name
    def __call__(self, function):
        MyError = type(self.name, (self.error, ), {})
        MyError.__module__ = function.__module__ + "." + function.__name__
        function.__setattr__(self.name, MyError)       
        return function

@Throws(NotImplementedError)
def foo():
    raise foo.NotImplementedError

@Throws(NotImplementedError)
def bar():
    raise bar.NotImplementedError

try:
    foo()
except foo.NotImplementedError:
    print "foo.NotImplementedError was catched"

foo.NotImplementedError was catched

try:
    foo()
except bar.NotImplementedError:
    print "bar.NotImplementedError was catched"

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_11.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("dHJ5OgogICAgZm9vKCkKZXhjZXB0IGJhci5Ob3RJbXBsZW1lbnRlZEVycm9yOgogICAgcHJpbnQgImJhci5Ob3RJbXBsZW1lbnRlZEVycm9yIHdhcyBjYXRjaGVkIg=="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpqaXZsW/___code___.py", line 3, in <module> foo() File "/tmp/tmpThFuTk/___code___.py", line 4, in foo raise foo.NotImplementedError __main__.foo.NotImplementedError