Bug with hexchat.

[SoniEx2]

So I was trying to use this with hexchat and this happened:

 >>> import lupa; lua = lupa.LuaRuntime(unpack_returned_tuples=False, encoding=None)
 >>> exec("def x(*args):\n hexchat.prnt(*([x.decode(\"utf-8\") for x in args]))\n\nlua.globals().print = x",globals(),locals())
 >>> lua.eval("print('\\xC2\\xA7')")
 §
 >>> lua.eval("print('\\xC2\\xA7')")
 Traceback (most recent call last):
   File "<string>", line 1, in <module>
   File "lupa/_lupa.pyx", line 203, in lupa._lupa.LuaRuntime.eval (lupa/_lupa.c:3789)
   File "lupa/_lupa.pyx", line 1060, in lupa._lupa.run_lua (lupa/_lupa.c:14933)
   File "lupa/_lupa.pyx", line 1079, in lupa._lupa.execute_lua_call (lupa/_lupa.c:15193)
   File "lupa/_lupa.pyx", line 189, in lupa._lupa.LuaRuntime.reraise_on_exception (lupa/_lupa.c:3579)
   File "lupa/_lupa.pyx", line 1214, in lupa._lupa.py_call_with_gil (lupa/_lupa.c:16528)
   File "lupa/_lupa.pyx", line 1206, in lupa._lupa.call_python (lupa/_lupa.c:16408)
   File "<string>", line 2, in x
   File "<string>", line 2, in <listcomp>
 RuntimeError: lost sys.__plugin__
 >>> lua.eval("print('\\xC2\\xA7')")
 §

Wat?

[scoder]

I have no idea what sys.__plugin__ is, so I can't say if it's a problem in lupa, lua or hexchat (whatever that is). Can you debug this to find out what goes wrong where?

[SoniEx2]

Lua version:

[soniex2@soniex-pc autostart]$ lua -v
Lua 5.2.3  Copyright (C) 1994-2013 Lua.org, PUC-Rio

Python version:

[soniex2@soniex-pc autostart]$ python --version
Python 3.4.2

HexChat version:

[soniex2@soniex-pc hexchat]$ hexchat -v
HexChat 2.11.0

More debugging:

 >>> import sys
 >>> sys.__plugin__
 <hexchat.Plugin object at 0x7ffa8722f530>

This doesn't seem to happen with anything else, so I think it's Lupa messing with something, but I'll report this to hexchat too.

[scoder]

Which Lupa version are you using? (1.0.1? Latest git master?)

Does this also happen if you run straight forward code instead of going through exec()?

[SoniEx2]

@scoder 1.0.1, and hexchat just locks up... (I can use either exec() if I want multiline in one line or .py scripts) If I remove exec() entirely and just run Lua code it also happens. (the locking up on init)