Dynamic encoding possible for open and reading file or contents?

[donni106]

We have an error for web pages that are not utf-8. Here is a code line (L325) which is affected:

portia/slybot/slybot/utils.py

Lines 322 to 328 in d079667

	def open(self, *args, **kwargs):
	"""Open files from filesystem."""
	raw = kwargs.pop('raw', False)
	with open(self._path(*args), encoding = 'utf-8') as f:
	return decode(f.read()) if raw else json.load(f)

Can this encoding be dynamic based on the web page or an option set for a web page in some configs?