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private _ctypes unimportable on linux bundle

See original GitHub issue

Running into an issue with our linux build, and wondering if you might have any thoughts?

I built the AppImage with github actions running ubuntu-16.04 as described in the tutorial (full build log and artifacts here). Building and packaging completed, but the packaging step did show a patchelf error:

Setting rpath in ELF file /home/runner/work/napari/napari/linux/napari/napari.AppDir/usr/lib/python3.8/config-3.8-x86_64-linux-gnu/python.o to $ORIGIN 
ERROR: Call to patchelf failed: 
wrong ELF type
 
ERROR: Failed to set rpath in ELF file: /home/runner/work/napari/napari/linux/napari/napari.AppDir/usr/lib/python3.8/config-3.8-x86_64-linux-gnu/python.o

When I then downloaded the artifact and tried to run on a local ubuntu machine (18.04) it failed to import numpy with:

 File "/tmp/.mount_napari6jrUf5/usr/app_packages/vispy/util/logs.py", line 14, in <module>
    import numpy as np
  File "/tmp/.mount_napari6jrUf5/usr/app_packages/numpy/__init__.py", line 142, in <module>
    from . import core
  File "/tmp/.mount_napari6jrUf5/usr/app_packages/numpy/core/__init__.py", line 102, in <module>
    from . import _dtype_ctypes
  File "/tmp/.mount_napari6jrUf5/usr/app_packages/numpy/core/_dtype_ctypes.py", line 25, in <module>
    import _ctypes
ModuleNotFoundError: No module named '_ctypes'

any ideas about that one? thanks!

Issue Analytics

State:
Created 3 years ago
Comments:6 (6 by maintainers)

Top GitHub Comments

2reactions

freakboy3742commented, May 27, 2020

It appears that @tlambert03’s analysis was correct; the CPython build didn’t include libFFI, and thus didn’t have a successful _ctypes build.

I’ve just published updated support packages 3.8-b2, 3.7-b2, 3.6-b2 and 3.5-b2; these now include ctypes, and also do a more effective stripping of binary content (so the final AppImage binaries are now much smaller).

0reactions

tlambert03commented, May 27, 2020

Thanks @freakboy3742!

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