Well, you've sure stumped me. Everything you've posted looks correct, and
the file locations are what one would expect. The one thing I don't quite
see is how you have Python3.11 on Ubuntu 20.04. I only have 3.10.6 on
Ubuntu 22.04. Also, I have both PyQt5 and PyQt6, and Leo goes with PyQt6
by preference. But that shouldn't matter.
One thing might be that your system is missing some shared lib (like
libsomething.so) that Qt needs. I saw that on one VM, but I forget all the
details. It might be worthwhile to see if PyQt actually works. For
starters, you could run an interpreter session and import PyQt5. If that
works, then copy the following code to a file - e.g., little-qt-tester.py -
and try to run it.
"""A basic qt app with a MainWindow.
Based on
https://www.learnpyqt.com/courses/adanced-ui-features/creating-multiple-windows
"""
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QLabel,
QVBoxLayout, QWidget
class AnotherWindow(QWidget):
"""
This "window" is a QWidget. If it has no parent, it
will appear as a free-floating window as we want.
"""
def __init__(self):
super().__init__()
layout = QVBoxLayout()
self.label = QLabel("Another Window")
layout.addWidget(self.label)
self.setLayout(layout)
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.button = QPushButton("Push for Window")
self.button.clicked.connect(self.show_new_window)
self.setCentralWidget(self.button)
def show_new_window(self, checked):
# Note that we assign the new window to self. If we didn't,
# e.g., w - AnotherWindow() - w would go out of scope when the
method
# completed. Then it would be deleted and garbage collected,
# and the new window would close at once.
self.w = AnotherWindow()
self.w.show()
def main():
app = QApplication(sys.argv)
w = MainWindow()
w.show()
app.exec_()
if __name__ == '__main__':
main()
If this program succeeds, then at least we know that PyQt5 has what it
needs to run. If it fails, maybe there will be a helpful error message. I
tried this program just now on my Ubuntu 22.04 VM system and it ran
correctly. It opens a small window filled with a pushbutton. Clicking on
the pushbutton opens a second, smaller window. It also runs as is on
Windows.
If this program runs correctly, I'm afraid I'm more or less out of ideas.
But try it out and maybe I'll come up with something. We can hope that
someone else recognizes something familiar, One thing that surprises me is
the lack of error messages, so we're flying blind. It's always possible, I
suppose, that the version of PyQt5 you've got wasn't built right for
Python3.11, but if so you would think there would be an error message of
some kind. Also on some other VM (IIRC) I do have Python 3.11, and Leo
works there.
If the above doesn't shed light on the problem, then if you have the
patience I would try to create a virtual machine that uses a different
Linux distro, like Mint, and see if you can get Leo working on that. I
don't mean that you should use Leo that way day to day, but it would let
you see that the install steps worked (or not).
Another thing I might try if it were my system is to see if I could install
a version of Python 3.10 along side of the 3.11 that's already there. Then
you would repeat the Leo install, but type python3.10 everywhere instead of
python3. It would be best to get the install package from python.org
instead of any other source.
On Monday, April 24, 2023 at 8:07:30 PM UTC-4 gr...@greglearns.com wrote:
> I'm on a brand new install of Ubuntu 20.04. Here's what I did, and
> the problem remains. Thoughts?
>
> python3 --version
> > Python 3.11.3
>
> python3 -m pip install --user --upgrade leo
> > <snip> Successfully installed leo-6.7.2
>
> python3 -m pip show leo
> > Name: leo
> > Version: 6.7.2
> > Summary: An IDE, PIM and Outliner
> > Home-page: http://leo-editor.github.io/leo-editor
> > Author: Edward K. Ream
> > Author-email: edre...@gmail.com
> > License: MIT License
> > Location: /home/greg/.local/lib/python3.11/site-packages
> > Requires: asttokens, black, build, docutils, flexx, meta, nbformat,
> pyenchant, pyflakes, pylint, PyQt5, PyQtWebEngine, pyshortcuts, sphinx, tk
> > Required-by:
>
> python3 -m pip list | grep -i "qt"
> > PyQt5 5.15.9
> > PyQt5-Qt5 5.15.2
> > PyQt5-sip 12.12.1
> > PyQtWebEngine 5.15.6
> > PyQtWebEngine-Qt5 5.15.2
> > sphinxcontrib-qthelp 1.0.3
>
> python3 -m leo.core.runLeo
>
> > 'NoneType' object has no attribute 'gui'
> >
> > *** Leo could not be started ***
> > Please verify you've installed the required dependencies:
> > https://leoeditor.com/installing.html
>
> On Sun, Apr 23, 2023 at 7:44 PM Thomas Passin <tbp1...@gmail.com> wrote:
> >
> > I cannot speak to the homebrew thing. But I'm pretty sure that the
> system version of Python3 is lower than 3.11. So there could be some
> confusion about where - in what version of python - things are getting
> installed. Not having PyQt6 might be a problem, though Leo can use either
> PyQt5 or 6 depending on what is available.
> >
> > Here is what I suggest. First of all, always pip-install using python3
> -m pip install ... (or use the name you use if it's not "python3"). This
> makes sure that pip is being run by and installing into the intended
> version of Python.
> >
> > Second, run python3 -m pip list |grep -i "qt". This will show you what
> version if any of Qt has been installed for the version of Python that is
> actually running.
> >
> > Remember that this version of Python may not be the same as the
> system-installed one, especially if a homebrew path is involved.
> >
> > Next, run python3 -m pip show leo to see if Leo is installed. for this
> Python installation.
> >
> > If not, or if PyQT isn't installed, try to install Leo from PyPi with
> pip. You can worry about getting the latest devel version from GitHub
> later. Doing it this way will install all the dependencies you need:
> >
> > python3 -m pip install --user --upgrade leo
> >
> > If this succeeds and Leo runs using python3 -m leo.core.runLeo, then we
> can go on from there. All Leo's dependencies will have been installed.
> >
> > I'm afraid I forgot something in my previous suggestion. You said you
> had cd'ed to the git checkout directory. I'm not sure that in itself is
> enough for the paths to work right. The best way is not to be in the
> checkout directory, but to export the leo-editor directory to $PYTHONPATH
> before running Leo. I do that using a batch file that sets the variable and
> then runs Leo. Or you could use a venv or install with --editable, but my
> way is the most direct for troubleshooting.
> >
> > I have installed Leo from PyPi and github many times in various versions
> of Ubuntu (all virtual machines on a Windows host), and so I know it can be
> done and usually without a problem. But as I say, I don't know anything
> about homebrew and how it may be changing how things work.
> > On Sunday, April 23, 2023 at 8:40:27 PM UTC-4 mys...@gmail.com wrote:
> >>
> >> My first question of concern is why is there a homebrew path where this
> is installing? As far as I know pip should install into a local Python
> system-wide directory, or into a user directory if given the --user option.
> >>
> >> Second, with Ubuntu 20.04, do you actually have QT version 6? I'm not
> certain of the state of things with QT version 5 and Leo, however you might
> need to try installing the PyQT5 package instead.
> >>
> >> That said I'm using Ubuntu 22.10 with plasma KDE backports, and I'm
> having a very reasonable time with it. I would suggest upgrading because
> 20.04 will continue to have outdated packages until it's end of life, which
> is how a stable distribution works.
> >>
> >> 23.04 is already out and I am planning a distupgrade to it soon.
> >>
> >> I hope this perhaps leads to some success on your end.
> >>
> >> Mike
> >>
> >>
> >>
> >> On Sun, Apr 23, 2023, 04:16 Greg Edwards <gr...@greglearns.com> wrote:
> >>>
> >>> I've followed the directions at
> https://leo-editor.github.io/leo-editor/installing.html, including
> >>> pip3 install PyQt6
> >>> pip3 install leo
> >>>
> >>> And when I run leo, I get an error
> >>> which leo
> >>> > /home/linuxbrew/.linuxbrew/bin/leo
> >>> leo
> >>> > 'NoneType' object has no attribute 'gui'
> >>>
> >>> Help?
> >>>
> >>> Thanks,
> >>> Greg
> >>>
> >>> --
> >>> You received this message because you are subscribed to the Google
> Groups "leo-editor" group.
> >>> To unsubscribe from this group and stop receiving emails from it, send
> an email to leo-editor+...@googlegroups.com.
> >>> To view this discussion on the web visit
> https://groups.google.com/d/msgid/leo-editor/7a44ecc6-56c5-4579-99f0-305f8b585af2n%40googlegroups.com
> .
> >
> > --
> > You received this message because you are subscribed to a topic in the
> Google Groups "leo-editor" group.
> > To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/leo-editor/hzk0zlSv5BY/unsubscribe.
> > To unsubscribe from this group and all its topics, send an email to
> leo-editor+...@googlegroups.com.
> > To view this discussion on the web visit
> https://groups.google.com/d/msgid/leo-editor/97ca4600-64f6-4f15-9c4a-883faef0cc18n%40googlegroups.com
> .
>
--
You received this message because you are subscribed to the Google Groups
"leo-editor" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to leo-editor+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/leo-editor/00d8d0d4-4da5-4912-8a53-2562547b2443n%40googlegroups.com.
