Can't get Camelot running

[Ralf Ullrich]

Hello folks,

I just recently found out about Camelot and thought it's worth trying out, however I can't get it up and running. I'm on different OS's (Windows 10, LinuxMint, Ubuntu, Manjaro), but I would be glad if I managed to get it working on any one of these.

Has anyone here gotten this successfully setup with a current OS? The last update here is from 2013 when I think Ubuntu 12 was current and Python 3 usage wasn't very common.

Nowadays it's even difficult to get QT 4.8 installed, it's been out of maintenance for quite a while and all the Linux repositories don't offer it anymore.

I even tried to buy the Windows package but the link on the website is dead. I used the contact form a few weeks ago but didn't get any response.

This is all quite frustrating ...

Maybe someone here could share some insights, please?

Best regards,
Ralf

[Erik Janssens]

Hello Ralf,

Please use the 'no_shared_data' branch from bitbucket.

It works with Python 3 and Qt 5.x (that should be easier).

If you have both PyQt4 and PyQt5 installed, you can force the use of PyQt5 by setting the environment variable CAMELOT_QT_API=PyQt5

Cheers,

Erik

[Ralf Ullrich]

Hello Erik,

thanks for the suggestion, this helped a step further along but not very far ...

This is what I've tried to do:
- install a fresh new OS (tried with Ubuntu and Manjaro)
- PyQt5 and QT5 are installed
- created a virtualenv for camelot, and PyQt5 is accessible in there

- hg clone https://bitbucket.org/conceptive/camelot
- hg checkout no_shared_data
- edit requirements.txt because there is a version conflict with chardet, so I removed the explicit versionnumber
- pip install -r requirements.txt --user

- export CAMELOT_QT_API=PyQt5
- cd myprojects/camelot/camelot_example
- python main.py

Then I get different exceptions one after another as I'm fixing them one by one, but after the sixth or so it feels like I'm not getting anywhere ...

The fixes I made so far:
1. in myprojects/camelot/camelot_example/main.py:
    in class ExampleSettings, function setup_model
    change the line "from . import model" to "import camelot_example.model as model"

2. in .virtualenvs/camelot_example/lib/python3.6/site-packages/camelot/view/controls/busy_widget.py:
    in class BusyWidget, function __init__
    change the corresponding line to "self.setSizePolicy( QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)"

3. in .virtualenvs/camelot_example/lib/python3.6/site-packages/camelot/view/workspace.py:
    in class DesktopBackground, function __init__
    change the corresponding line to "actionButtonsLayout = QtWidgets.QGridLayout()"

4. same file, same class, function set_actions
    change the corresponding line to "actionButtonsLayout = self.findChild(QtWidgets.QGridLayout, 'actionButtonsLayout')"

5. in .virtualenvs/camelot_example/lib/python3.6/site-packages/camelot/view/controls/tableview.py:
    in class TableView, function __init__
    change the corresponding line to "splitter = QtWidgets.QSplitter(self)"

    a couple lines further
    change to "size_policy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)"

6. in .virtualenvs/camelot_example/lib/python3.6/site-packages/camelot/view/controls/inheritance.py:
    in class SubclassTree, function __init__
    change the corresponding line to "self.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)"


Is it that I did something wrong while installing, is my setup messed up? Or is it something else?

I have no experience with QT, the GUI stuff I did so far happened with wxPython. I'm wondering if the setup really can be such a problem. And I haven't even tried the whole thing on Windows, I assume this is going to be even more difficult considering I've never used py2exe or anything similar.

Could you share some thoughts maybe?

Kind regards,
Ralf

[Ralf Ullrich]

Hi Erik,

this morning I thought "well, let's then at least try the online tutorial for the videostore".

So, new virtualenv, same packages installed.

export CAMELOT_QT_API=PyQt5

python -m camelot.bin.camelot_admin

This is what I got:

WARNING:camelot.core.qt:CAMELOT_QT_API environment variable set to PyQt5
INFO:camelot.core.qt:Using PyQt5 Qt bindings
WARNING:camelot.core.qt:QApplication: invalid style override passed, ignoring it.
ERROR:camelot.view.action_runner:gui exception while executing action
Traceback (most recent call last):
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/action_runner.py", line 195, in __next__
    to_send = yielded.gui_run( self._gui_context )
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/action_steps/change_object.py", line 267, in gui_run
    dialog = self.render(gui_context)
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/action_steps/change_object.py", line 263, in render
    self.reject)
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/action_steps/change_object.py", line 82, in __init__
    model.set_value([obj])
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/proxy/collection_proxy.py", line 444, in set_value
    self.refresh()
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/proxy/collection_proxy.py", line 415, in refresh
    post( self.getRowCount, self._refresh_content )
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/model_thread/__init__.py", line 149, in post
    mt.post(request, response, exception, args)
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/core/threading.py", line 46, in wrapper
    result = original_function(self, *args, **kwargs)
  File "/home/ralf/.virtualenvs/videostorewithcamelot/lib/python3.5/site-packages/camelot/view/model_thread/signal_slot_model_thread.py", line 230, in post
    QtCore.Qt.QueuedConnection )
TypeError: decorated slot has no signature compatible with Task.finished[object]

Kind regards,

Ralf