Hooking everything together

We now have to fiddle with Tmux just a tiny bit more, but it's fairly painless, and once we are done we are free to be creative. Fundamentally, we should call the cmd_entry initialization hook in server.c just before we forget about it:

#ifdef HAVE_PYTHON
  Py_InitializeEx (0);
  tmux_init_cython ();
#endif

  server_loop();

#ifdef HAVE_PYTHON
  Py_Finalize ();
#endif

Now that this is done, we need to make sure we add the cmd_entry_python extern declaration to tmux.h:

extern const struct cmd_entry cmd_wait_for_entry;
#ifdef HAVE_PYTHON
# include "cmdpython.h"
#endif

Finally, add this to cmd_table:

const struct cmd_entry *cmd_table[] = {
  &cmd_attach_session_entry,
  &cmd_bind_key_entry,
  &cmd_break_pane_entry,
…
  &cmd_wait_for_entry,
  &cmd_entry_python,
  NULL
};

Now that this is done, I think we're good to go—let's test out this baby. Compile Tmux with the following:

$ ./configure –enable-python
$ make
$ ./tmux -vvv
$ tmux: C-b :python
$ tmux...