import re
pattern = r"\[(config\.[^\s\]]*)_ROLE]"
s = ("[config.OPERATOR_ROLE]\n"
"[config.MENEGER_ROLE]")
result = re.sub(pattern, r"{\g<1>_ROLE}", s)
if result:
print (result)
aW1wb3J0IHJlCgpwYXR0ZXJuID0gciJcWyhjb25maWdcLlteXHNcXV0qKV9ST0xFXSIKcyA9ICgiW2NvbmZpZy5PUEVSQVRPUl9ST0xFXVxuIgoJIltjb25maWcuTUVORUdFUl9ST0xFXSIpCgkKcmVzdWx0ID0gcmUuc3ViKHBhdHRlcm4sIHIie1xnPDE+X1JPTEV9IiwgcykKCmlmIHJlc3VsdDoKICAgIHByaW50IChyZXN1bHQp