gistfile1.txt

def sandbox_import(path, module):
	import sys
	old = sys.path
	sys.path = [path]

	oldmod = None
	if module in sys.modules:
		oldmod = sys.modules[module]

	mod = __import__(module)
	sys.path = old

	if oldmod:
		sys.modules[module] = oldmod
	else:
		del sys.modules[module]
	return mod

def sandbox_import_namespace(path, module, scope):
	mod = sandbox_import(path, module)
	v = vars(mod)
	for key in v:
		if not key.startswith('_'):
			scope[key] = v[key]