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POPython Ctypes weird behavior
 

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  1. POPython Ctypes weird behavior
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    <p>I am trying to design a bot for an application called Virtual Paradise and the SDK that is given for building the bot is compiled into a shared library, therefore I have to use ctypes.</p> <p>when I use</p> <pre><code>import threading ... from ctypes import CDLL, CFUNCTYPE, c_char_p, c_int, c_void_p vp = CDLL("libvpsdk.so") vp.vp_string.restype = c_char_p vp.vp_int.restype = c_int ... class bot(threading.Thread): def initBot(self): ... instance = vp.vp_create() ... EventFunc = CFUNCTYPE(None) event_chat_func = EventFunc(self.event_chat) vp.vp_event_set(instance, 0, event_chat_func) ... def event_chat(self): print "Hello" ... </code></pre> <p>event_chat gets called correctly and prints "Hello"</p> <p>but when I use this</p> <pre><code>import threading import chat ... from ctypes import CDLL, CFUNCTYPE, c_char_p, c_int, c_void_p vp = CDLL("libvpsdk.so") vp.vp_string.restype = c_char_p vp.vp_int.restype = c_int ... class bot(threading.Thread): def initBot(self): ... instance = vp.vp_create() ... chat.VPSDK(vp, instance) ... </code></pre> <p>Chat.py:</p> <pre><code>from ctypes import CFUNCTYPE ... class VPSDK: def __init__(self, vp, instance): EventFunc = CFUNCTYPE(None) event_chat_func = EventFunc(self.event_chat) vp.vp_event_set(instance, 0, event_chat_func) def event_chat(self): print "Hello" ... </code></pre> <p>I get the error "Illegal instruction"</p> <p>What am I doing wrong!? I need to use this separate class, otherwise other parts of my bot will loose functionality.</p>
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