How can I tell what the computer's overall memory usage is from Python, running on Windows XP?
You can also just call GlobalMemoryStatusEx() (or any other kernel32 or user32 export) directly from python:
import ctypes
class MEMORYSTATUSEX(ctypes.Structure):
_fields_ = [
("dwLength", ctypes.c_ulong),
("dwMemoryLoad", ctypes.c_ulong),
("ullTotalPhys", ctypes.c_ulonglong),
("ullAvailPhys", ctypes.c_ulonglong),
("ullTotalPageFile", ctypes.c_ulonglong),
("ullAvailPageFile", ctypes.c_ulonglong),
("ullTotalVirtual", ctypes.c_ulonglong),
("ullAvailVirtual", ctypes.c_ulonglong),
("sullAvailExtendedVirtual", ctypes.c_ulonglong),
]
def __init__(self):
# have to initialize this to the size of MEMORYSTATUSEX
self.dwLength = ctypes.sizeof(self)
super(MEMORYSTATUSEX, self).__init__()
stat = MEMORYSTATUSEX()
ctypes.windll.kernel32.GlobalMemoryStatusEx(ctypes.byref(stat))
print("MemoryLoad: %d%%" % (stat.dwMemoryLoad))
Not necessarily as useful as WMI in this case, but definitely a nice trick to have in your back pocket.