ModuleNotFoundError when using linuxdeploy-plugin-conda

[probonopd]

Not sure if this is a linuxdeploy-plugin-conda bug or a bug in the TruFont Python packaging.

Here is my script:

#! /bin/bash

export APPNAME=trufont
export PIP_REQUIREMENTS="$APPNAME"
# export CONDA_PACKAGES="$APPNAME" # Only use this if the app is in a Conda channel (e.g., conda-forge)

wget -c "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
wget -c "https://raw.githubusercontent.com/TheAssassin/linuxdeploy-plugin-conda/master/linuxdeploy-plugin-conda.sh"
chmod +x linuxdeploy-x86_64.AppImage linuxdeploy-plugin-conda.sh

rm -r AppDir || true

cat > $APPNAME.desktop <<EOF
[Desktop Entry]
Version=1.0
Name=TruFont
Exec=trufont %U
Terminal=false
Type=Application
Icon=$APPNAME
Categories=Graphics;
EOF

touch "$APPNAME.svg"
./linuxdeploy-x86_64.AppImage --appdir AppDir --plugin conda -i $(readlink -f "$APPNAME.svg") -d $(readlink -f "$APPNAME.desktop") --output appimage

An AppImage gets generated, but it does not run:

me@host:~$ ./TruFont-x86_64.AppImage 
Traceback (most recent call last):
  File "/tmp/.mount_TruFonZMkCwr/AppRun", line 7, in <module>
    from trufont.__main__ import main
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/trufont/__main__.py", line 1, in <module>
    from defconQt import representationFactories as baseRepresentationFactories
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/defconQt/representationFactories/__init__.py", line 3, in <module>
    from defcon import Glyph, Image, registerRepresentationFactory
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/defcon/__init__.py", line 10, in <module>
    from defcon.objects.font import Font
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/defcon/objects/font.py", line 7, in <module>
    from fontTools.ufoLib import UFOReader, UFOWriter, UFOLibError, UFOFileStructure
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/fontTools/ufoLib/__init__.py", line 9, in <module>
    import fs
ModuleNotFoundError: No module named 'fs'

[probonopd]

Maybe TruFont has an undocumented dependency on https://pypi.org/project/fs/?

[probonopd]

Indeed, also installing fs from PyPI solves this. Now running into

me@host:~$ ./TruFont-x86_64.AppImage 
Traceback (most recent call last):
  File "/tmp/.mount_TruFontlFOjs/AppRun", line 7, in <module>
    from trufont.__main__ import main
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/trufont/__main__.py", line 4, in <module>
    from trufont.objects.application import Application
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/trufont/objects/application.py", line 13, in <module>
    from trufont.windows.inspectorWindow import InspectorWindow
  File "/home/me/AppDir/usr/conda/lib/python3.7/site-packages/trufont/windows/inspectorWindow.py", line 1, in <module>
    from defconQt.controls.accordionBox import AccordionBox
ModuleNotFoundError: No module named 'defconQt.controls.accordionBox'

[probonopd]

Turned out both were unrelated to linuxdeploy-plugin-conda but maybe this verbose description helps others who might be running into similar issues. For the record, this works:

#! /bin/bash

sudo apt -y install git

export APPNAME=trufont
export PIP_REQUIREMENTS="-e git+https://github.com/trufont/trufont#egg=$APPNAME fs"
# export CONDA_PACKAGES="$APPNAME" # Only use this if the app is in a Conda channel (e.g., conda-forge)

wget -c "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
wget -c "https://raw.githubusercontent.com/TheAssassin/linuxdeploy-plugin-conda/master/linuxdeploy-plugin-conda.sh"
chmod +x linuxdeploy-x86_64.AppImage linuxdeploy-plugin-conda.sh

rm -r AppDir || true

cat > $APPNAME.desktop <<EOF
[Desktop Entry]
Version=1.0
Name=TruFont
Exec=trufont %U
Terminal=false
Type=Application
Icon=$APPNAME
Categories=Graphics;
EOF

wget -c "https://github.com/trufont/trufont/raw/master/Lib/trufont/resources/app.png"
convert app.png -resize 512x512 $APPNAME.png

./linuxdeploy-x86_64.AppImage --appdir AppDir --plugin conda -i $APPNAME.png -d $(readlink -f "$APPNAME.desktop") --output appimage