Re: New information (success report) for Frescobaldi 3 and the Ubuntu 16.04 repositories

[Urs Liska]

Am 7. Januar 2018 00:56:53 MEZ schrieb Simon Albrecht <address@hidden>:
>Hi Urs,
>I did now test the instructions on an Ubuntu 16.04 Live system, and it
>seems to work (Frescobaldi is up and running; I didn't test any of the
>features). There's one typo: popller->poppler. My first question would
>be: what solution to using a .desktop file and still use the correct
>python-ly, but IIUC that's already covered by your TODO list. 

I'm a bit surprised because I *did* write this but now I don't see it on the 
wiki page. Well, I will look at it again tomorrow. 

The solution is to create a wrapper script In your path (e.g. 
~/bin/frescobaldi) that takes care of the python path. The desktop file points 
to the wrapper script. 

Urs


>Another
>item to be covered would be configuring MIDI output. I remember that on
>one of the attempts that I made to install I also tried to set up
>python-portmidi following http://frescobaldi.org/download, but that
>seemed to be a new can of worms and I couldn't get it to work (didn't
>dig deep either).   Best, Simon 
>
> Am 06-Jan-2018 15:19:32 +0100 schrieb address@hidden: 
>I have now finished a run-through of installation instructions. As I
>have once more renamed it the link is now
>https://github.com/wbsoft/frescobaldi/wiki/Installing-Frescobaldi-3-on-Linux-(Package-or-Source)
>
> I'd be glad about feedback:
>
> * confirmation
> * questions
> * reports about mistakes
> * reports about failures
> * reports/comments about distributions not covered yet.
>
> Urs
>
> 6. Januar 2018 11:41, address@hidden schrieb:
>
> > Hi all,
> > 
>> after all the discussion about getting Frescobaldi to run on
>distributions based on Ubuntu < 17.xx
> > I decided to give it a shot myself.
> > 
>> TL;DR Frescobaldi *can* be installed on Ubuntu 16.04/Mint 18.3 from
>its own Git repositories and
> > the Ubuntu package repositories without issues.
> > 
> > Context/Situation:
> > I freshly installed Linux Mint 18.3.
>> (NOTE: I use a previously existing $HOME directory, but I'm quite
>sure this doesn't affect the
> > process)
>> Mint 18.3 is based on Ubuntu 16.04 (Mint 19 will be based on Ubuntu
>18.04, the next LTS release),
>> and the relevant packages are from the Ubuntu repositories (so no
>Mint specifics added), which
> > means I assume the behaviour on vanilla Ubuntu 16.04 is the same.
> > 
> > Commented installation steps:
> > 
> > # Make sure everything is up-to-date
> > sudo apt update && sudo apt upgrade
> > 
> > sudo apt install git
> > 
> > # Install Frescobaldi's primary dependencies
>> sudo apt install python3-pyqt5 python3-pyqt5.qtsvg
>python3-pyqt5.qtwebkit
> > 
> > # Obtain the Git repositories
>> # (I *assume* these could instead be downloaded from Github as ZIP
>files)
> > cd ~
>> mkdir git # this is just my personal base directory for Git
>repositories
> > cd git
> > git clone https://github.com/wbsoft/python-ly.git python-ly
> > git clone https://github.com/wbsoft/frescobaldi.git frescobaldi
> > 
>> First try to run Frescobaldi: Invoke python3 with the frescobaldi
>entry file and add python-ly to
> > the Python search path:
> > 
>> PYTHONPATH=$PYTHONPATH:~/git/python-ly python3
>~/git/frescobaldi/frescobaldi
> > 
>> Frescobaldi correctly starts up, but (expectedly) doesn't show the
>Music View because the Poppler
> > package isn't installed.
> > 
> > # Install the Poppler bindings from the Ubuntu repositories
> > sudo apt install python3-poppler-qt5
> > 
>> After that Frescobaldi correctly starts and shows scores both in the
>Music View and in the SVG
> > View.
> > 
>> Knowing this one could have installed all dependencies with one
>single 
> > 
>> sudo apt install python3-pyqt5 python3-pyqt5.qtsvg
>python3-pyqt5.qtwebkit python3-poppler-qt5
> > 
> > ###
> > 
>> I don't know enough about this and I can't investigate on a "broken"
>computer, but I have a
> > suspicion.
>> The issue is that we have Qt, an application framework written in
>C++. Frescobaldi is written in
>> PyQt, which is a set of Qt "bindings" for Python, so Python programs
>can use the Qt infrastructure.
> > 
>> The point is that all bindings packages (which includes the general
>PyQt infrastructure and the
>> custom bindings for the Poppler library that is used to display PDF
>documents) have to be "compiled
>> against" and with the exact versions of Qt and Python that are
>installed on the system.
>> Generally this is an aspect that should be taken care of by a Linux
>distribution's package
>> management system, and my latest try indicates that this works
>correctly with Ubuntu 16.04 (by
> > now?).
> > 
>> My suspicion is that when using pip (or pip3) for installing the
>Python packages these relations
>> are in some way incorrect, maybe they interfere with packages
>installed through APT.
>> Similarly, when using the setup.py script in the Frescobaldi
>installation directory things seem not
> > to work correctly.
>> Finally it is maybe not clear enough in the instructions that
>*everything* (i.e. Ubuntu packages
> > and pip) have to be used in their python3 versions.
> > 
>> So my final recommendation is: Use Ubuntu's packages and install
>everything through APT, and avoid
> > pip3 or setup.py.
> > 
> > I will update the Wiki page
>>
>(https://github.com/wbsoft/frescobaldi/wiki/Installing-Frescobaldi-3-on-Linux-(package-source),
>> note that I have renamed it) and try to make everything as clear as
>possible. But I wanted to share
>> this result and encourage people using Ubuntu 16.04 to test and
>verify it.
> > 
> > Best
> > Urs
> > 
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