bumblebee-status/bumblebee/modules/memory.py

import psutil
import bumblebee.module
import bumblebee.util

class Module(bumblebee.module.Module):
    def __init__(self, args):
        super(Module, self).__init__(args)
        self._mem = psutil.virtual_memory()

    def data(self):
        self._mem = psutil.virtual_memory()

        free = self._mem.available
        total = self._mem.total

        return "{}/{} ({:05.02f}%)".format(bumblebee.util.bytefmt(self._mem.available), bumblebee.util.bytefmt(self._mem.total), 100.0 - self._mem.percent)

    def warning(self):
        return self._mem.percent < 20

    def critical(self):
        return self._mem.percent < 10

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