Pythonic C++

#include <vector>
#include <iostream>

#define forevery ,
#define inside ,

#define PythonRange2(expression, variable, collection) \
    [&collection]() \
    { \
        std::remove_reference<decltype(collection)>::type __collectionCopy; \
        for (const auto& variable : collection) \
        { \
            __collectionCopy.push_back(expression); \
        } \
        return __collectionCopy; \
    }()

#define LeftBrace (

#define PythonRange(expression) \
    PythonRange2 LeftBrace expression )

int main() {
    std::vector<int> myList = { 1, 2, 3 };
    auto transformed = PythonRange(x * x forevery x inside myList);

    for (const auto& x : transformed)
    {
        std::cout << x << std::endl;
    } // 1, 4, 9
}