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# -*- python -*-
'''
xpybar – xmobar replacement written in python
Copyright © 2014, 2015, 2016, 2017 Mattias Andrée (maandree@member.fsf.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import os
class Lid:
'''
Laptop lid monitor
'''
@staticmethod
def is_open():
'''
Check whether the lid is open
@param :bool? `True` if the lid is open,
`False` if the lid is closed,
`None` if there is no lid, or if the
computer does not report the lid's state
'''
if not os.path.exists('/proc/acpi/button/lid/LID/state'):
return None
with open('/proc/acpi/button/lid/LID/state', 'rb') as file:
return 'open' in file.read().decode('utf-8', 'strict')
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