Embedding Python

Now that we have files being compiled, we need to initialize Python. Our module. Tmux is a forked server that clients connect to, so try not to think of it as a single-threaded system. It's a client and a server, so all commands are executed on the server. Now, let's find where the event loop is started in the server, and initialize and finalize the server here so that it's done correctly. Looking at int server_start(int lockfd, char *lockfile), we can add the following:

#ifdef HAVE_PYTHON
  Py_InitializeEx (0);
#endif
  server_loop();
#ifdef HAVE_PYTHON
  Py_Finalize ();
#endif

Python is now embedded into the Tmux server. Notice that instead of using simply Py_Initialize, I used Py_InitializeEx (0). This replicates the same behavior, but doesn't start up normal Python signal handlers. Tmux has its own signal handlers, so I don't want to override them. It's probably a good idea when extending established applications such as this to use Py_InitializeEx (0), since they generally...