[Qgis-user] Couldn't load SIP module

[Mike Flannigan]

See my write-up below on the SIP module loading problem.
I am no longer OK.  Apparently the TimeShift back
only temporarily fixes the problem.  So every plugin
available to me is this short list:
http://www.mflan.com/temp/plugins.jpg

All I can figure is most QGIS users don't use plugins
(not likely) or this problem is affecting less than
10% of QGIS users.  Otherwise I suspect this would be the
biggest issue discussed on the list.  I don't even know
what to work on - QGIS or Python.

I am on QGIS version 3.14.16-Pi.  I guess I will go forward -
to ver 3.16.0 at first, then backwards if necessary.  I would
welcome a 3.16.0 user who does not have this problem to
state that on this list.  I welcome any suggestions.

I am on Linux Mint 19.3.


Mike



On 10/29/20 3:40 PM, Mike Flannigan wrote:
>
> I have been using QGIS a lot recently.  All of a sudden
> it gives "Couldn't load SIP module", which is a Python
> problem with QGIS that has been around for many years.
>
> I TimeShifted back about 3 days and the problem is solved
> for now, but I just wanted to get this recorded.
>
> Here are a few write-ups on the problem, some very recent:
>
>
> https://github.com/qgis/QGIS/issues/38310
>
> https://github.com/qgis/QGIS/issues/30895
>
> https://gis.stackexchange.com/questions/306595/qgis-3-4-couldnt-load-sip-module-python-support-will-be-disabled-on-windows-10 
>
>
>
>
> The error message I receive is:
>
>
> Couldn't load SIP module.
> Python support will be disabled.
>
>
> Traceback (most recent call last):
>   File "", line 1, in
>   File "/app/share/qgis/python/qgis/__init__.py", line 70, in
>     from qgis.PyQt import QtCore
>   File "/app/share/qgis/python/qgis/PyQt/QtCore.py", line 24, in
>     from PyQt5.QtCore import *
> ModuleNotFoundError: No module named 'PyQt5.sip'
>
>
> Python version:
> 3.8.5 (default, Nov 10 2011, 15:00:00)
> [GCC 10.2.0]
>
> QGIS version:
> 3.14.16-Pi 'Pi', a235a149
>
> Python path:
> ['/app/share/qgis/python', 
> '/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python', 
> '/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python/plugins', 
> '/app/share/qgis/python/plugins', '/usr/lib/python38.zip', 
> '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', 
> '/usr/lib/python3.8/site-packages', 
> '/app/lib/python3.8/site-packages', 
> '/app/lib/python3.8/site-packages/numpy-1.19.2-py3.8-linux-x86_64.egg', 
> '/app/lib/python3.8/site-packages/MarkupSafe-1.1.1-py3.8-linux-x86_64.egg'] 
>
>
>
>
>
> Ignoring the error message allows QGIS to start, but then
> you don't have the "Lat Lon Tools" plugin, and a few other things.
>
> My Python versions appear to be ver 2.7, ver 3.6, ver 3.7.
>
> Again, I am OK for now, but I hope this issue is resolved soon.
>
>
>
> Mike
>
>