The classic languages with ternary (C, C++, Java, PHP, JavaScript) all have the deficiency of distinction between statements and expressions. When everything in your language is an expression, the need for ternary disappears.
let x = if true { 5 } else { 6 };Python has a ternary operator, which does return a value. It just so happens this operator uses the tokens `if` and `else`. But it's the same thing what you'd write in C or Javascript as `C ? T : F`, would be written `T if C else F` in Python. Different order of arguments and tokens, but it's still the ternary operator and not an if/else block.
You can't get a result from block statements in Python. Just because the ternary operator uses the same tokens as the if/else block, doesn't mean it's the same thing.