patch 8.0.0251: not easy to select Python 2 or 3
Problem: It is not so easy to write a script that works with both Python 2
and Python 3, even when the Python code works with both.
Solution: Add 'pyxversion', :pyx, etc. (Marc Weber, Ken Takata)
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index cb2fadc..d70ff6a 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -1132,6 +1132,18 @@
EX(CMD_py3file, "py3file", ex_py3file,
RANGE|FILE1|NEEDARG|CMDWIN,
ADDR_LINES),
+EX(CMD_pyx, "pyx", ex_pyx,
+ RANGE|EXTRA|NEEDARG|CMDWIN,
+ ADDR_LINES),
+EX(CMD_pyxdo, "pyxdo", ex_pyxdo,
+ RANGE|DFLALL|EXTRA|NEEDARG|CMDWIN,
+ ADDR_LINES),
+EX(CMD_pythonx, "pythonx", ex_pyx,
+ RANGE|EXTRA|NEEDARG|CMDWIN,
+ ADDR_LINES),
+EX(CMD_pyxfile, "pyxfile", ex_pyxfile,
+ RANGE|FILE1|NEEDARG|CMDWIN,
+ ADDR_LINES),
EX(CMD_quit, "quit", ex_quit,
BANG|RANGE|COUNT|NOTADR|TRLBAR|CMDWIN,
ADDR_WINDOWS),