Error initializing plugin with Vim 8 from source + pyenv 3.6.4

Personne n'a encore pris cette issue.

Having just re-installed Vim from source in OS X:

Vim version: 8.0.1848
OS X version: 10.13.4
Python version: 3.6.4 (via pyenv)
Vim package management: Vim >= 8 internal

Other plugins are loading fine. When I try to load the vdebug plugin, either by placing in a `~/.vim/pack/*/start` folder or via `:packadd vdebug`, I get the following error:

```
Error detected while processing /Users/leons/.vim/pack/plugins/opt/vdebug/plugin/vdebug.vim:
line 39:
Traceback (most recent call last):
File "", line 1, in
File "/Users/leons/.vim/pack/plugins/opt/vdebug/pythonx/start_vdebug.py", line 8, in
import vdebug.debugger_interface
File "/Users/leons/.vim/pack/plugins/opt/vdebug/pythonx/vdebug/debugger_interface.py", line 3, in
from . import breakpoint
File "/Users/leons/.vim/pack/plugins/opt/vdebug/pythonx/vdebug/breakpoint.py", line 1, in
import base64
File "/Users/leons/.pyenv/versions/3.6.4/lib/python3.6/base64.py", line 10, in
import struct
File "/Users/leons/.pyenv/versions/3.6.4/lib/python3.6/struct.py", line 13, in
from _struct import *
ImportError: dlopen(/Users/leons/.pyenv/versions/3.6.4/lib/python3.6/lib-dynload/_struct.cpython-36m-darwin.so, 2): Symbol not found: _PyByteArray_Type
Referenced from: /Users/leons/.pyenv/versions/3.6.4/lib/python3.6/lib-dynload/_struct.cpython-36m-darwin.so
Expected in: flat namespace
in /Users/leons/.pyenv/versions/3.6.4/lib/python3.6/lib-dynload/_struct.cpython-36m-darwin.so
line 114:
Traceback (most recent call last):
File "", line 1, in
NameError: name 'vdebug' is not defined
Error detected while processing function Vdebug_load_options:
line 8:
Traceback (most recent call last):
File "", line 1, in
NameError: name 'debugger' is not defined
Error detected while processing function Vdebug_load_keymaps:
line 22:
Traceback (most recent call last):
File "", line 1, in
NameError: name 'debugger' is not defined
Press ENTER or type command to continue
```

Of note, `:python3` commands work fine in Vim, though `:python` commands do not. Does vdebug require both to be working?

Reproduisez l’échec lors du chargement de plugin/vdebug.vim, en commençant à la ligne 39, puis examinez pythonx/start_vdebug.py ainsi que les imports dans pythonx/vdebug/debugger_interface.py et breakpoint.py. Comparez l’environnement :python3 fonctionnel avec le Python intégré défaillant et déterminez ce qui est nécessaire pour que l’initialisation se termine sans le traceback ni les messages NameError qui s’ensuivent.

Rédigé par le modèle d'indexation à partir du texte de l'issue.