Python cute based (and this repo forked from) vim-cute-python
Cpp cude based on vim-cute-cpp

This does not – at any point – alter your source code. It simply uses Vim's "conceal" feature to “hide” in behind ∈, etc. Whenever the cursor is at a line with concealed text, the text will be expanded.

To install, simply put python.vim in ~/.vim/after/syntax or use a plug-in manager such as vim-plug or pathogen.vim.

Vim ≥ 7.3 is required.