patch 8.2.2926: Vim9: no good error for using :legacy in a :def function Commit: https://github.com/vim/vim/commit/c3cb1c92a335be818971acd89f631e82aa30ad3f Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 2 16:47:53 2021 +0200 patch 8.2.2926: Vim9: no good error for using :legacy in a :def function Problem: Vim9: no good error for using :legacy in a :def function. Solution: Give an explicit error where :legacy is not working. (closes #8309)

/* if_python3.c */
int python3_enabled(int verbose);
void python3_end(void);
int python3_loaded(void);
void ex_py3(exarg_T *eap);
void ex_py3file(exarg_T *eap);
void ex_py3do(exarg_T *eap);
void python3_buffer_free(buf_T *buf);
void python3_window_free(win_T *win);
void python3_tabpage_free(tabpage_T *tab);
void do_py3eval(char_u *str, typval_T *rettv);
int set_ref_in_python3(int copyID);
/* vim: set ft=c : */