如何在Windows上獲取總磁盤大小？

Question

我可以通過​​和MEMORYSTATUSEX()獲得RAM大小，但是我無法找到任何有關總磁盤大小（不是可用空間，但總體容量）的任何內容。

Answer 1

ActiveState公司有這個使用Windows GetDiskFreeSpaceEx功能recipe。它似乎工作時，我做了一些有限的測試，但它有一些潛在的問題，所以這是一個大大改進，更防彈的版本，至少在Python 2.7 +至3.x），並只使用內置的，在模塊中。

@eryksun值得大多數信譽/責任的增強，因爲（s）他顯然是使用​​的專家的專家。

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:/')) 

輸出示例：

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

Answer 2

然後你應該使用這段代碼。

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))