I've never seen Python or Lua community do that so far. But Python is its own animal (which IMO is only highlighting how good it is), it's not supplanting anything. Rust meanwhile both hates C and piggybacks on it (using LLVM, similar syntax, cited compatibility and coexistence with C). Lua is similar, no hate, its own animal, custom syntax, good in its niche (Python's niche seems to be literally everything not super performance critical BTW). Same for Erlang and Elixir, custom, different languages that are masters of their niche (and go see people gushing over these two on HN, they don't shit on other languages but say how good these are, no "Pfsshh, it's 2017, only idiot would write a reliable service in C, you can't program C ever, it's broken").