Python's versus Lua's closures

cplusplus.cpp

#include <functional>
#include <iostream>
#include <vector>

int main()
{
    std::vector<std::function<int (int)>> l;
    for(int i = 0; i < 10; ++i)
        l.push_back([=](int x) { return i + x; });
    std::cout << l[2](3) << std::endl; // 5
    return 0;
}

lua.lua

l = {}
for i = 0, 10 do
    l[i] = function(x) return x + i end
end
print(l[2](3))
-- 5

python.py

l = []

for i in range(10):
    l.append(lambda x: x + i)

print(l[2](3))
# 12

Cool, thank you!