Question

我可以通过ctypes和MEMORYSTATUSEX()获得RAM大小，但是我无法找到总磁盘大小的任何内容（不是可用空间，而是总容量）。

Answer 1

ActiveState有一个recipe，使用Windows GetDiskFreeSpaceEx功能。它似乎在我进行一些有限的测试时起作用，但它有许多潜在的问题，所以这里是一个大大改进的，更加防弹的版本，至少在Python 2.7+到3.x中工作）并且仅使用内置的在模块中。

@eryksun应该得到大部分功劳/归咎于增强功能，因为他显然是使用ctypes主题的专家。

import os
import collections
import ctypes
import sys

import locale
locale.setlocale(locale.LC_ALL, '')  # set locale to default to get thousands separators

PULARGE_INTEGER = ctypes.POINTER(ctypes.c_ulonglong)  # Pointer to large unsigned integer
kernel32 = ctypes.WinDLL('kernel32', use_last_error=True)
kernel32.GetDiskFreeSpaceExW.argtypes = (ctypes.c_wchar_p,) + (PULARGE_INTEGER,) * 3

class UsageTuple(collections.namedtuple('UsageTuple', 'total, used, free')):
    def __str__(self):
        # Add thousands separator to numbers displayed
        return self.__class__.__name__ + '(total={:n}, used={:n}, free={:n})'.format(*self)

def disk_usage(path):
    if sys.version_info < (3,):  # Python 2?
        saved_conversion_mode = ctypes.set_conversion_mode('mbcs', 'strict')
    else:
        try:
            path = os.fsdecode(path)  # allows str or bytes (or os.PathLike in Python 3.6+)
        except AttributeError:  # fsdecode() not added until Python 3.2
            pass

    # Define variables to receive results when passed as "by reference" arguments
    _, total, free = ctypes.c_ulonglong(), ctypes.c_ulonglong(), ctypes.c_ulonglong()

    success = kernel32.GetDiskFreeSpaceExW(
                            path, ctypes.byref(_), ctypes.byref(total), ctypes.byref(free))
    if not success:
        error_code = ctypes.get_last_error()

    if sys.version_info < (3,):  # Python 2?
        ctypes.set_conversion_mode(*saved_conversion_mode)  # restore conversion mode

    if not success:
        windows_error_message = ctypes.FormatError(error_code)
        raise ctypes.WinError(error_code, '{} {!r}'.format(windows_error_message, path))

    used = total.value - free.value
    return UsageTuple(total.value, used, free.value)

if __name__ == '__main__':
    print(disk_usage('C:/'))

示例输出：

UsageTuple(total=102,025,392,128, used=66,308,366,336, free=35,717,025,792)

Answer 2

然后你应该使用这段代码。

import win32com.client as com


def TotalSize(drive):
    """ Return the TotalSize of a shared drive [GB]"""
    try:
        fso = com.Dispatch("Scripting.FileSystemObject")
        drv = fso.GetDrive(drive)
        return drv.TotalSize/2**30
    except:
        return 0

def FreeSpace(drive):
    """ Return the FreeSape of a shared drive [GB]"""
    try:
        fso = com.Dispatch("Scripting.FileSystemObject")
        drv = fso.GetDrive(drive)
        return drv.FreeSpace/2**30
    except:
        return 0

drive = r'C:'
print 'TotalSize of %s = %d GB' % (drive, TotalSize(drive))
print 'FreeSapce on %s = %d GB' % (drive, FreeSapce(drive))

Answer 3

您可以使用psutil，如果要查找C：驱动器或任何其他驱动器的总大小，则只需提供disk_usage（）函数内的路径并转换为GB。在这里，我发现C：Drive的总磁盘大小。

import psutil
totalsize = psutil.disk_usage('C:').total / 2**30
print('totalsize: ',totalsize, ' GB')

Answer 4

从Python 3.3开始，您可以使用shutil.disk_usage()：

import shutil
print(shutil.disk_usage("E:\\"))

示例输出（其中E:是8GB SD卡）

usage(total=7985954816, used=852361216, free=7133593600)

这具有可以在Windows和Unix上运行的优点，并且不需要安装第三方库！

如何在Windows上获得总磁盘大小？

4 个答案: