0xFFFFFFFFFFFFFFFF Traceback with Skype4Py

Question

When using Skype4Py and running my code, I come across this traceback:

Exception in thread Skype4Py API thread:
Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 530, in __bootstrap_inner
    self.run()
  File "build\bdist.win-amd64\egg\Skype4Py\api\windows.py", line 92, in run
    if not self.create_window():
  File "build\bdist.win-amd64\egg\Skype4Py\api\windows.py", line 242, in create_
window
    wclass = windll.user32.RegisterClassA(byref(self.window_class))
WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF

It could be any code, with a different function and still the traceback appears.

The traceback still appears when Command Prompt is in administration as well as on an IDE like Eclipse.

Connor Simpson · Accepted Answer · 2017-06-02T09:39:54.753

3

After research into this error I noticed that Skype4Py is based on x32 version of Python, which means in order to resolve this issue you will need to stop using x64 versions of Python when using this module.

edited Jun 02 '17 at 09:39

answered Feb 16 '14 at 01:50

Connor Simpson

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How do you install 32 bit version if 64 bit is already installed? – CodyBugstein Mar 15 '16 at 20:57
1

@CodyBugstein Just choose another dir not default. In theory the setup will use Program Files or x64 version of folder, but because the default folder of Python is C:\\ (in windows) you have to manually choose/set folders. If you do install it only for your user it's even more weird. There's no problem to install many versions if you use a dir each one. Also, you should set "path" in a order that satisfies you, cuz the first one on the path will be the one fired when you type `python` at terminal. – m3nda May 18 '17 at 11:05

score 0 · Answer 2 · answered Feb 16 '14 at 01:26

Modern operating systems detect when a program tries to read non-existent memory (including the very beginning and very end of the otherwise-valid memory range) and throws a memory-access exception. This is designed to detect use of uninitialized pointers. Whatever binary your Skype library is based on must be broken. It's a shame that modern programs still need this kind of hand-holding!

I'm actually a little surprised that you saw a Python backtrace instead of a C backtrace, though. Either the Python library is being really clever here, or I'm wrong.

0xFFFFFFFFFFFFFFFF Traceback with Skype4Py

2 Answers2