Une erreur est survenue lors de l'éxécution du code Python: 

TypeError: readXml() takes 2 positional arguments but 3 were given 
TypeError: readXml() takes 2 positional arguments but 3 were given


Version de Python : 3.6.4 (v3.6.4:d48ecebad5, Dec 18 2017, 21:07:28) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] 
Version de QGIS : 3.6.0-Noosa Noosa, exported 

Chemin Python :
/Applications/QGIS3.6.app/Contents/MacOS/../Resources/python
/Users/aymeric/Library/Application Support/QGIS/QGIS3/profiles/default/python
/Users/aymeric/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins
/Applications/QGIS3.6.app/Contents/MacOS/../Resources/python/plugins
/Library/Frameworks/SQLite3.framework/Versions/E/Python/3.6
/Library/Frameworks/Python.framework/Versions/3.6/lib/python36.zip
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/lib-dynload
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/graphserver-1.0.0-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/servable-2009rc0-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/networkx-2.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/Sphinx-2.0.0b1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/packaging-19.0-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/imagesize-1.1.0-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/alabaster-0.7.12-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/Babel-2.6.0-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/snowballstemmer-1.2.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/docutils-0.14-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_qthelp-1.0.2-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_serializinghtml-1.1.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_htmlhelp-1.0.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_jsmath-1.0.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_devhelp-1.0.1-py3.6.egg
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/sphinxcontrib_applehelp-1.0.1-py3.6.egg
/Users/aymeric/Library/Application Support/QGIS/QGIS3/profiles/default/python
/Users/aymeric/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/vector_tiles_reader/ext-libs
/Users/aymeric/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins