On Mon, 2025-03-24 at 20:32 +0800, James Liu via vbox-dev wrote:
> Hi,
>
> I got two problems of using VirtualBox SDK in Python.
>
> Environment: Centos8.5, Ubuntu22.04
> Platform: x86-64
> VirtualBox version: 7.1
> Installation: sudo apt-get install virtualbox (dnf install for
> Centos)
>
>
> There are several environment variables set.
> - VBOX_SDK_PATH: /usr/lib/virtualbox
> - VBOX_INSTALL_PATH: /usr/lib/virtualbox
>
> 1. When installing Python binding with ```python3 vboxapisetup.py
> install```, there is an error:
>
> m=VBoxPython3_10 x=dynamic module does not define module export
> function (PyInit_VBoxPython3_10)
> Traceback (most recent call last):
> ...
> if oHost.architecture not in
> (oVBoxMgr.constants.PlatformArchitecture_x86,
> File
> "/usr/lib/virtualbox/sdk/bindings/xpcom/python/xpcom/client/__init__.
> py", line 391, in __getattr__
> raise AttributeError("XPCOM component '%s' has no attribute '%s'"
> % (self._object_name_, attr))
> AttributeError: XPCOM component '<unknown>' has no attribute
> 'architecture'
I think you need locate [1] which is module xpcom
/usr/lib/virtualbox/VBoxPython3.so
/usr/lib/virtualbox/VBoxPython3m.so
> Despite the error, I can still use Python API.
>
> 2. With above installation, single threading is ok to use, but for
> multithreading or multiprocessing, it reports an error "No module
> named xpcom". VBoxXPCOM.so is located at /usr/lib/virtualbox.
>
>
> Any suggestion is appreciated. Thanks!
>
>
> Sample code:
>
> import virtualbox
> from multiprocessing.pool import Pool
>
> vm_names = ["vm1", "vm2", "vm3"]
> pool = Pool(processes=len(vm_names))
>
> def vm_func(vm_name):
> vb = virtualbox.VirtualBox() # error: no module named 'xpcom'
>
> pool = Pool(3)
> for name in vm_names:
> pool.apply_async(func=vm_func, args=(name,))
>
--
Sérgio M. B.
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