Hi Jim, I was chasing updates to libgphoto2 last year (<a class="iss

Bingo! Thanks Jim. Omitting that entire line in the build has done the trick.</

Missing pre-req's(?) after building libgphoto2 from source on Raspberry Pi about python-gphoto2 HOT 3 CLOSED

greiginsydney commented on June 29, 2024

Missing pre-req's(?) after building libgphoto2 from source on Raspberry Pi

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Comments (3)

greiginsydney commented on June 29, 2024 1

Bingo! Thanks Jim. Omitting that entire line in the build script has done the trick.

I can now build to current releases of both libgphoto and python-gphoto.

pi@BenchPi3BPlus:~/examples $ python3 gphoto2_version.py
python: 3.9.2 (default, Mar 12 2021, 04:06:34)
[GCC 10.2.1 20210110]
libgphoto2: ['2.5.30.1', 'standard camlib set SKIPPING SOME (ax203 canon digigr8 dimagev directory jl2005a jl2005c kodak_dc240 mars pentax ptp2 ricoh_g3 sierra sonix sq905 st2205 topfield tp6801 SKIPPING docupen lumix)', 'gcc (C compiler used)', 'no ltdl (for portable loading of camlibs)', 'EXIF (for special handling of EXIF files)']
libgphoto2_port: ['0.12.1', 'iolibs: disk ptpip serial usb1 usbdiskdirect usbscsi', 'gcc (C compiler used)', 'no ltdl (for portable loading of iolibs)', 'EXIF (for vusb)', 'USB (libusb1, for USB cameras)', 'serial (for serial cameras)', 'no resmgr (serial port access and locking)', 'no ttylock (serial port locking)', 'no lockdev (serial port locking)']
python-gphoto2: 2.3.4
pi@BenchPi3BPlus:~/examples $

I appreciate the help as always.

- G.

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jim-easterbrook commented on June 29, 2024

Why are you using apt to install libgphoto2 after you've installed your local build of it? This might be giving you two installations in different places which could confuse the Python build. The import error might be because at runtime Python is linking to a different version of libgphoto2 than the one whose header files python-gphoto2 was built with.

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greiginsydney commented on June 29, 2024

That would be purely a misunderstanding as to what all the various components do.

I'd do a rebuild without adding libgphoto2-6 & libgphoto2-port12 and see what happens.

Thanks.

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