text = mystring("”“text name: %%(nama)s”“")
print text % vars()

'[name]' или '%%(nama)'

class mystring(str):
	def __init__(self, s):
		self.s = s
	def __mod__(self, a):
		for i in xrange(self.s.count('%%(')):
			b = self.s.find('%%(')
			e = self.s.find(')', b)
			self.s = self.s[:b] + a[self.s[b+3: e]] + self.s[e+1:]
		return self.s
 
s = mystring('hi %%(name) %%(lastname)')
print s % {'name': 'Ivan', 'lastname': 'Ivanov'}
 
s2 = mystring('hi %%(key)')
v = {'key': 'world'}
print s2 % v