bring over lots of Py3 changes from master

.travis.yml

@@ -4,11 +4,10 @@ services:
 language: python
 
 env:
-  - IMGTAG=debian9
-  - IMGTAG=debian10
-  - IMGTAG=fedora31
-  - IMGTAG=ubuntu18.04
-  - IMGTAG=ubuntu19.10
+  - IMGTAG=debian10-python3
+  - IMGTAG=fedora31-python3
+  - IMGTAG=ubuntu18.04-python3
+  - IMGTAG=ubuntu19.10-python3
 
 before_install:
 - docker pull exaile/exaile-testimg:${IMGTAG}
@@ -29,7 +28,7 @@ jobs:
   - stage: deploy
     language: python
     python:
-    - "2.7"
+    - "3.6"
     virtualenv:
       system_site_packages: true
     if: tag IS present

DEPS

@@ -11,17 +11,25 @@ Core dependencies
 
 Essential:
 
-* python (== 2.7.x)
-* bsddb (distributed with stdlib) or bsddb3
-* gtk+ >= 3.10
-* gstreamer >= 1.4
-* gstreamer-plugins-base >= 1.6
-* gstreamer-plugins-good >= 1.4
-* mutagen (>= 1.10)
-* dbus-python
-* pygobject (>= 3.13.2)
-* python-cairo
-* GI typelib files for GTK+, GStreamer (including gstreamer-plugins-base) and cairo (python-gi-cairo on Ubuntu)
+* python3 >= 3.6
+* python3-bsddb3
+* gtk+ >= 3.22
+* gstreamer (>= 1.14)
+* gstreamer-plugins-base (>= 1.14)
+* gstreamer-plugins-good (>= 1.14)
+* python3-mutagen (>= 1.38)
+* python3-dbus
+* GI typelib files for GTK+, GStreamer (including gstreamer-plugins-base) and cairo and their python bindings
+  * Packages on Debian and Ubuntu:
+    * python3-gi >= 3.22
+    * python3-gi-cairo
+    * gir1.2-gtk-3.0
+    * gir1.2-gstreamer-1.0
+    * gir1.2-gst-plugins-base-1.0
+  * Packages on Fedora:
+    * python3-cairo
+    * python3-gobject >= 3.22
+    * python3-gstreamer1
 
 Optional dependencies
 ---------------------
@@ -40,33 +48,33 @@ Device detection:
 
 * udisks2
 
-CD info:
+CD info: (TODO: This is currently broken on python3, see #608 and #652)
 
 * cddb (python2), from http://cddb-py.sourceforge.net/
 
 DAAP plugins (daapserver and daapclient):
 
-* spydaap (python2), e.g. from https://github.com/exaile/spydaap or https://pypi.org/project/spydaap/
+* spydaap (python3), e.g. from https://github.com/exaile/spydaap or https://pypi.org/project/spydaap/
 
 Last.FM integration:
 
-* pylast (python2)
+* pylast (python3)
 
 Lyrics from lyricsmania.com (lyricsmania):
 
-* lxml (python2)
+* lxml (python3)
 
 Lyrics from lyrics.wikia.com (lyricwiki):
 
-* Beautifulsoup4 (python2)
+* Beautifulsoup4 (python3)
 
 Musicbrainz covers:
 
-* musicbrainzngs (python2)
+* musicbrainzngs (python3)
 
 Podcast plugin:
 
-* feedparser (python2)
+* feedparser (python3)
 
 Wikipedia info:
 
@@ -98,6 +106,6 @@ BPM Counter plugin:
 
 Test dependencies:
 
-* mox3 (python2)
-* pytest (python2)
+* mox3 (python3)
+* pytest (python3)
 

Makefile

@@ -1,5 +1,5 @@
-PYTHON2_CMD   ?= python2
-PYTEST        ?= py.test
+PYTHON3_CMD   ?= python3
+PYTEST        ?= py.test-3
 BLACK         ?= black
 
 PREFIX         = /usr/local
@@ -47,8 +47,8 @@ builddir:
 	mkdir -p build
 
 compile:
-	$(PYTHON2_CMD) -m compileall -q xl xlgui
-	-$(PYTHON2_CMD) -O -m compileall -q xl xlgui
+	$(PYTHON3_CMD) -m compileall -q xl xlgui
+	$(PYTHON3_CMD) -O -m compileall -q xl xlgui
 	$(MAKE) -C plugins compile
 
 make-install-dirs:
@@ -160,7 +160,7 @@ install-target: make-install-dirs
 	-install -m 644 build/exaile.fish-completion $(DESTDIR)$(FISHCOMPDIR)/exaile.fish
 	install -m 644 data/config/settings.ini $(EXAILECONFDIR)
 	tools/generate-launcher "$(DESTDIR)" "$(PREFIX)" "$(EPREFIX)" "$(LIBINSTALLDIR)" \
-		"$(PYTHON2_CMD)" && \
+		"$(PYTHON3_CMD)" && \
 	  chmod 755 $(EXAILEBINDIR)/exaile
 	sed "s|\@bindir\@|$(EPREFIX)/bin|" data/org.exaile.Exaile.service.in > \
 		$(DESTDIR)$(DATADIR)/dbus-1/services/org.exaile.Exaile.service && \
@@ -201,8 +201,8 @@ manpage: builddir
 	  | gzip -9 > build/exaile.1.gz
 
 completion: builddir
-	$(PYTHON2_CMD) tools/generate-completion.py bash > build/exaile.bash-completion
-	$(PYTHON2_CMD) tools/generate-completion.py fish > build/exaile.fish-completion
+	$(PYTHON3_CMD) tools/generate-completion.py bash > build/exaile.bash-completion
+	$(PYTHON3_CMD) tools/generate-completion.py fish > build/exaile.fish-completion
 
 clean:
 	-find . -name "*.~[0-9]~" -exec rm -f {} \;

doc/Makefile

@@ -3,7 +3,7 @@
 
 # You can set these variables from the command line.
 SPHINXOPTS    ?=
-SPHINXBUILD   = python2 -msphinx
+SPHINXBUILD   = python3 -msphinx
 SPHINXPROJ    = Exaile
 SOURCEDIR     = .
 BUILDDIR      ?= _build

doc/conf.py

@@ -28,12 +28,12 @@
 os.environ['EXAILE_BUILDING_DOCS'] = 'TRUE'
 
 EXAILE_AUTHORS = [
-    u'Adam Olsen <arolsen@gmail.com>',
-    u'Johannes Sasongko <sasongko@gmail.com>',
-    u'Aren Olsen <reacocard@gmail.com>',
-    u'Mathias Brodala <info@noctus.net>',
-    u'Dustin Spicuzza <dustin@virtualroadside.com>',
-    u'Christian Stadelmann',
+    'Adam Olsen <arolsen@gmail.com>',
+    'Johannes Sasongko <sasongko@gmail.com>',
+    'Aren Olsen <reacocard@gmail.com>',
+    'Mathias Brodala <info@noctus.net>',
+    'Dustin Spicuzza <dustin@virtualroadside.com>',
+    'Christian Stadelmann',
 ]
 
 #
@@ -76,9 +76,9 @@
 master_doc = 'index'
 
 # General information about the project.
-project = u'Exaile'
-copyright = u'2009-2018 Exaile Development Team'
-author = u''.join(EXAILE_AUTHORS)
+project = 'Exaile'
+copyright = '2009-2018 Exaile Development Team'
+author = ''.join(EXAILE_AUTHORS)
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -178,7 +178,7 @@
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, 'Exaile.tex', u'Exaile Documentation',
+    (master_doc, 'Exaile.tex', 'Exaile Documentation',
      author.replace('<', '\\textless{}').replace('>', '\\textgreater{}'),
      'manual'),
 ]
@@ -189,7 +189,7 @@
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    (master_doc, 'exaile', u'Exaile Documentation',
+    (master_doc, 'exaile', 'Exaile Documentation',
      [author], 1)
 ]
 
@@ -200,7 +200,7 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'Exaile', u'Exaile Documentation',
+    (master_doc, 'Exaile', 'Exaile Documentation',
      author, 'Exaile', 'One line description of project.',
      'Miscellaneous'),
 ]

doc/dev/debugging.rst

@@ -43,8 +43,7 @@ On Windows:
 Viewing stack traces when Exaile hangs
 --------------------------------------
 
-If you have the `faulthandler <https://github.com/haypo/faulthandler>`_ module
-installed, on Linux/OSX if you send SIGUSR2 to Exaile it will dump stacktraces
+On Linux/OSX if you send SIGUSR2 to Exaile it will dump stacktraces
 of all current Python threads to stderr.
 
 GStreamer Debugging Techniques
@@ -112,7 +111,7 @@ GDB can be used to diagnose segfaults and other issues. To run GDB:
 
 .. code-block:: sh
 
-    gdb --args python2 exaile.py --startgui <other arguments here>
+    gdb --args python3 exaile.py --startgui <other arguments here>
 
 Refer to the `Python Documentation <https://wiki.python.org/moin/DebuggingWithGdb>`_,
 but especially useful here are:
@@ -143,7 +142,7 @@ and sometimes on older versions. See
 Eliminating Gtk-WARNING
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-1. run gdb with ``G_DEBUG=fatal-warnings gdb --args python2 exaile --startgui``
+1. run gdb with ``G_DEBUG=fatal-warnings gdb --args python3 exaile --startgui``
 2. run exaile from gdb with ``run``
 3. do whatever causes `Gtk-WARNING`. This will lead to a crash in exaile.
 4. debug this crash with gdb
@@ -173,7 +172,7 @@ Debugging segfaults (segmentation violations)
 1. Open a terminal.
 2. Use the ``cd`` command to change to the directory where you put Exaile source
    code or to its installation directory.
-3. Run ``gdb /usr/bin/python2``
+3. Run ``gdb /usr/bin/python3``
 4. In gdb, run ``set logging on exaile-segfault.txt`` to enable logging to that file.
 5. In gdb, run ``run ./exaile.py --startgui``. You might append other arguments if you need them.
 6. Use Exaile as you did before and try to reproduce the problem. At some point, exaile might freeze. This is when gdb catched the segmentation fault.

doc/dev/getting_started.rst

@@ -36,10 +36,10 @@ dependencies:
 .. code-block:: sh
 
     sudo apt-get install \
-      python-mutagen \
-      python-gi \
-      python-gi-cairo \
-      python-dbus \
+      python3-mutagen \
+      python3-gi \
+      python3-gi-cairo \
+      python3-dbus \
       gir1.2-gtk-3.0 \
       gir1.2-gstreamer-1.0 \
       gir1.2-gst-plugins-base-1.0 \
@@ -59,10 +59,10 @@ awhile):
 .. code-block:: sh
 
   pacman -S \
-    mingw-w64-i686-python2-gobject \
-    mingw-w64-i686-python2-cairo \
-    mingw-w64-i686-python2-pip \
-    mingw-w64-i686-python2-bsddb3 \
+    mingw-w64-i686-python3-gobject \
+    mingw-w64-i686-python3-cairo \
+    mingw-w64-i686-python3-pip \
+    mingw-w64-i686-python3-bsddb3 \
     mingw-w64-i686-gtk3 \
     mingw-w64-i686-gdk-pixbuf2 \
     mingw-w64-i686-gstreamer \
@@ -76,14 +76,14 @@ Once that is complete, you'll want to install mutagen:
 
 .. code-block:: sh
 
-    python -m pip install mutagen
+    python3 -m pip install mutagen
 
 And then you should be able to launch Exaile from the msys2 console:
 
 .. code-block:: sh
 
     cd exaile
-    python exaile_win.py 
+    python3 exaile_win.py
 
 OSX
 ~~~
@@ -113,7 +113,7 @@ Useful documentation
 Exaile is built upon Python, PyGObject, Gtk+, and GStreamer. Here is a bunch of
 documentation that you will find useful when working with these frameworks:
 
-* `Python 2 <https://docs.python.org/2.7/>`_
+* `Python 3 <https://docs.python.org/3/>`_
 * `PyGObject <https://pygobject.readthedocs.io>`_
 * `Python GI API Reference <https://lazka.github.io/pgi-docs>`_
 * `Python GTK+3 Tutorial <https://python-gtk-3-tutorial.readthedocs.io>`_