raise ConnectionError in python2.7

Question

i want to raise ConnectionError (a python 3 subclass) when my program fails to connect to a local service. i'm using python2.7. testing this out though, it looks like i have to import a module to get this working:

>>> raise ConnectionError("test")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'ConnectionError' is not defined

how can i raise this type of exception?

Answer 1

ConnectionError does not exist in Python 2, as you can see from the Python 2 documentation. You can of course create your own subclass of OSError (and even call it ConnectionError if you want), but no such thing is built in.