This is some of the main parsing machinery that underlies Spot.

Spot parse function, Program class

def parse():  
	global scope
	scope = Scope()
	advance() #to put the first token in
	p = Program()
	p.statementd()	
	return p

class Program:
  def statementd(self):
		self.children = statement_list()
		return self
	def eval(self, env):
		for mini_selves in self.children:
			mini_selves.eval(env)
	def codegen(self):

		code = []
		functions = []
		remainder = []

		for statement in self.children:
			if isinstance(statement, DefineNewFuncTok):
				functions.append(statement)
			else:
				remainder.append(statement)
			# code.extend(statement.codegen())

		for f in functions:
			code.extend(f.codegen())

		code.append("mystart:")

		for line in remainder:
			code.extend(line.codegen())

		return code