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#!/usr/bin/env python
# python-gphoto2 - Python interface to libgphoto2
# http://github.com/jim-easterbrook/python-gphoto2
# Copyright (C) 2014-22 Jim Easterbrook jim@jim-easterbrook.me.uk
#
# This file is part of python-gphoto2.
#
# python-gphoto2 is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# python-gphoto2 is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with python-gphoto2. If not, see
# <https://www.gnu.org/licenses/>.
# demonstrate Python handling of libgphoto2 errors
# needs to run with no camera connected
import locale
import logging
import sys
import gphoto2 as gp
def main():
locale.setlocale(locale.LC_ALL, '')
def callback(level, domain, string, data=None):
print('Callback: level =', level, ', domain =', domain, ', string =', string)
if data:
print('Callback data:', data)
camera = gp.Camera()
# add our own callback
print('Using Python callback')
print('=====================')
callback_obj = gp.check_result(
gp.gp_log_add_func(gp.GP_LOG_VERBOSE, callback))
print('callback_obj', callback_obj)
# create an error
gp.gp_camera_init(camera)
# uninstall callback
del callback_obj
# add our own callback, with data
print('Using Python callback, with data')
print('================================')
callback_obj = gp.check_result(
gp.gp_log_add_func(gp.GP_LOG_VERBOSE, callback, 'some data'))
print('callback_obj', callback_obj)
# create an error
gp.gp_camera_init(camera)
# uninstall callback
del callback_obj
# set gphoto2 to use Python's logging directly
print('Using Python logging')
print('====================')
logging.basicConfig(
format='%(levelname)s: %(name)s: %(message)s', level=logging.WARNING)
callback_obj = gp.check_result(gp.use_python_logging())
# create an error
gp.gp_camera_init(camera)
return 0
if __name__ == "__main__":
sys.exit(main())
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