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

[Simon Albrecht]

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.

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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