Template string wrapper. uses 'inspect' to get the caller namespace dict

templater.py

import inspect

def render(string,variables=None):
	"""Wrapper method for String Template:
		name="Jeff"
		render("Hello, $name")
		>>Hello, Jeff
	"""
	t = Template(string)
	if not variables:
		frame = inspect.currentframe()
		try:
			variables = frame.f_back.f_locals
		finally:
			del frame
	return t.substitute(variables)