Again having issues with building QGIS 3 on Manjaro Linux, from AUR. After solving my previous problem (QGIS 3.0 can't load plugin processing, no module named 'osgeo', on Manjaro Linux), I now get the following error message:
Couldn't load PyQGIS. Python support will be disabled. Traceback (most recent call last): File "", line 1, in File "/usr/share/qgis/python/qgis/__init__.py", line 72, in from qgis.core import QgsFeature, QgsGeometry File "/usr/share/qgis/python/qgis/core/__init__.py", line 34, in from qgis._core import * RuntimeError: the sip module implements API v11.0 to v11.3 but the within renderer) .. versionadded:: 2.6 module requires API v12.4 Python version: 3.6.4 (default, Jan 5 2018, 02:35:40) [GCC 7.2.1 20171224] QGIS version: 3.0.1-Girona 'Girona', exported Python path: ['/usr/share/qgis/python', '/home/thiago/.local/share/QGIS/QGIS3/profiles/default/python', '/home/thiago/.local/share/QGIS/QGIS3/profiles/default/python/plugins', '/usr/share/qgis/python/plugins', '/home/thiago/anaconda3/lib/python3.6/site-packages', '/usr/lib/python36.zip', '/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', '/usr/lib/python3.6/site-packages']
I have recompiled gdal, python-gdal, have used pip to install the latest version of sip, but I still get the same error, after several rebuilds. This error means QGIS starts without python support, making it pretty much useless for any analysis.