> ... making all blocks scopes would be pretty awkward and require tons of "xy=None # reassigned later" and nonlocals) ... C, C++, Java, C#, JS/TS (through let

> ... making all blocks scopes would be pretty awkward and require tons of "xy=None # reassigned later" and nonlocals) ... C, C++, Java, C#, JS/TS (through let), Rust, and more all require variable declaration before use. Python is the odd one out here. JavaScript had something similar (variable hoisting), but it's so problematic that we ditched it for let/const.