How to set default encoding in Python (setdefaultencoding() function does not exist)? [duplicate]

Python's sys module has had a setdefaultencoding function since Python 2.0. However,

This function is only intended to be used by the site module implementation and, where needed, by sitecustomize. Once used by the site module, it is removed from the sys module’s namespace.

The docs back to at least Python 2.1 indicate this happens, so it was never appropriate for PyAnaconda to use this method, and I'm not sure why it ever worked.

How to set the default encoding,anyway?

Run sys.setdefaultencoding in the file sitecustomize.py, which needs to be in sys.path (e.g. lib/site-packages) when Python starts up. You can verify the change with sys.getdefaultencoding.

Edit for anonymous downvoter:

Whoever downvoted this answer, would you care to explain? This question is for Python 2.x only. There is no sys.setdefaultencoding in Python 3 if that's your problem. I stand by my explanation of how to use this function if one wants to in Python 2. I wasn't defending its use or recommending its use. A library should never touch it, which is why it's removed from the sys namespace after site.py and sitecustomize.py have a chance to call it. A library should also never assume the default encoding is ASCII in 2.x. It's up to the system. Personally I leave it as ASCII.