def usage():
tx_bytes, rx_bytes = 0, 0
for i in network.interfaces:
tx_bytes += readint(f'/sys/class/net/{i}/statistics/tx_bytes')
rx_bytes += readint(f'/sys/class/net/{i}/statistics/rx_bytes')
tx_old, rx_old = network.usage
rx_rate = rx_bytes - rx_old
tx_rate = tx_bytes - tx_old
network.usage = (tx_bytes, rx_bytes)
if not any((tx_rate, rx_rate)):
return None
return ' '.join([
f'↑ {human_readable(tx_rate)}',
f'↓ {human_readable(rx_rate)}',
])
def backlight_percentage() -> str:
bl_now = readint(glob('/sys/class/backlight/*/brightness')[0])
percent = (100 / bl_max) * bl_now
return label('bl', meter(percent))
'''Backlight level percentage.'''
from glob import glob
from lib_pybar import Block, label, meter, readint
try:
bl_max = readint(glob('/sys/class/backlight/*/max_brightness')[0])
has_backlight_info = True
except (FileNotFoundError, IndexError):
has_backlight_info = False
def backlight_percentage() -> str:
bl_now = readint(glob('/sys/class/backlight/*/brightness')[0])
percent = (100 / bl_max) * bl_now
return label('bl', meter(percent))
def main():
return Block(
prerequisite=has_backlight_info,
source=backlight_percentage,
sleep_ms=500,
weight=95,
)
'''Memory usage.'''
from lib_pybar import Block, label, meter, readint
swap_percent = 100 - readint('/proc/sys/vm/swappiness')
def memory_usage():
mem = {}
with open('/proc/meminfo', 'r') as f:
for line in f.readlines():
line = line.strip().split()
if len(line) == 3:
key, val, _ = line
key = key[:-1]
elif len(line) == 2:
key, val = line
key = key[:-1]
mem[key] = int(val)
# memory usage as calculated by `free(1)`
percent = (100 / mem['MemTotal']) * (
mem['MemTotal'] - mem['Buffers'] - mem['Cached'] - mem['MemFree']
)
# Only show memory usage when we are more than halfway to swapping
if percent > (swap_percent / 2):
def charging(self):
return readint('/sys/class/power_supply/AC/online')
def power_levels(self):
for battery in self.batteries:
full = readint(f'{battery}/energy_full')
now = readint(f'{battery}/energy_now')
power = ((100 / full) * now)
yield power