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Python C++ (EXPERIMENTAL + IN PROGRESS)

A Python interpreter implementation in C++. The current aim is to be compliant with the Python 3.10 spec and have releases inline with future Python versions.

What is different from CPython?

  • This interpreter uses a register-based VM, instead of stack-based VM
  • JIT support (TODO: the plan is to use something like LLVM or ASMJIT to support some code optimisations at runtime)
  • The runtime is written in C++, so Python Objects are C++ classes internally. This should make it easier to write C++ Python bindings.

What doesn't change from CPython?

  • Tokens generated by the Lexer are the same as in CPython (see token list)
  • The grammar specification is the same as the one used to generate the CPython parser (see spec)
  • The AST nodes are the same ones used in CPython (see node definitions)