Python - most efficient way to select a random message according to a type

I have some (hundreds of) messages with a type:

Type Message
1    Lorem ipsum dolor sit amet, consectetur adipiscing elit.
1    Maecenas eu risus a arcu rutrum vehicula vel in neque.
1    Curabitur ante sapien, cursus nec diam non, porttitor sagittis leo.
2    Nunc et nisi nec ligula placerat accumsan.
2    In lacinia, neque rutrum aliquet luctus, odio ligula accumsan risus.
3    ...
3    ...
...  ...

I want to select a random message from type 1 messages, or type 2 messages, etc. I want to build an efficient way. So my questions are:

How should i store these messages? With a list, dictionary, txt or DB table (i'm also using Django). Messages will be static. I won't change or edit them regularly. Buy maybe in the future i'll need to use translations for other languages.

How can i select a RANDOM message according to type? i.e. "a random message with type 1".

Thanks all,