Why are Python strings immutable? Best practices for using them

Question

1. What are the design reasons of making Python strings immutable? How does it make programming easier?
2. I\'m used to mutable strings, like the ones in C. How am

Answer 1

Immutable strings can be keys in dictionaries and similar data structures, without the need to copy the strings. It is easier to make a mutable wrapper around an immutable string than the other way around.