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'''
Linux Brightness
----------------
'''
from plyer.facades import Brightness
import subprocess
import os
class LinuxBrightness(Brightness):
def __init__(self):
if os.system("which xbacklight"):
msg = ("It looks like 'xbacklight' is not installed. Try "
"installing it with your distribution's package manager.")
raise Exception(msg)
def _current_level(self):
cr_level = subprocess.check_output(["xbacklight", "-get"])
return str(cr_level)
def _set_level(self, level):
subprocess.call(["xbacklight", "-set", str(level)])
def instance():
return LinuxBrightness()
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