Why c# and python cannot displace java, c or c++

Question

https://www.infoworld.com/article/3223224/JUMP_LINK__&&__python__&&__JUMP_LINK/why-python-and-c-cant-displace-java-c-or-c.html which one will replace them and when, what is your tip?

Answer 1

On the other hand http://www.techrepublic.com/article/which-is-the-fastest-growing-programming-language-hint-its-not-javascript/

Answer 2

python