Существует ли способ перечислить все доступные буквы дисков в Python?

вот более простая версия, не устанавливая дополнительных модулей или любых функций.

>>> import os
>>> ['%s:' % d for d in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' if os.path.exists('%s:' % d)]
['C:', 'D:']

источник: https://bytes.com/topic/python/answers/802661-list-disk-drives-windows

Без использования каких-либо внешних библиотек, если это важно для вас:

import string
from ctypes import windll

def get_drives():
    drives = []
    bitmask = windll.kernel32.GetLogicalDrives()
    for letter in string.uppercase:
        if bitmask & 1:
            drives.append(letter)
        bitmask >>= 1

    return drives

if __name__ == '__main__':
    print get_drives()     # On my PC, this prints ['A', 'C', 'D', 'F', 'H']

Those look like better answers. Here's my hackish cruft

import os, re
re.findall(r"[A-Z]+:.*$",os.popen("mountvol /").read(),re.MULTILINE)

Riffing a bit on RichieHindle's answer; it's not really better, but you can get windows to do the work of coming up with actual letters of the alphabet

>>> import ctypes
>>> buff_size = ctypes.windll.kernel32.GetLogicalDriveStringsW(0,None)
>>> buff = ctypes.create_string_buffer(buff_size*2)
>>> ctypes.windll.kernel32.GetLogicalDriveStringsW(buff_size,buff)
8
>>> filter(None, buff.raw.decode('utf-16-le').split(u'\0'))
[u'C:\\', u'D:\\']

The Microsoft Script Repository includes this recipe which might help. I don't have a windows machine to test it, though, so I'm not sure if you want "Name", "System Name", "Volume Name", or maybe something else.

import win32com.client 
strComputer = "." 
objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator") 
objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2") 
colItems = objSWbemServices.ExecQuery("Select * from Win32_LogicalDisk") 
for objItem in colItems: 
    print "Access: ", objItem.Access 
    print "Availability: ", objItem.Availability 
    print "Block Size: ", objItem.BlockSize 
    print "Caption: ", objItem.Caption 
    print "Compressed: ", objItem.Compressed 
    print "Config Manager Error Code: ", objItem.ConfigManagerErrorCode 
    print "Config Manager User Config: ", objItem.ConfigManagerUserConfig 
    print "Creation Class Name: ", objItem.CreationClassName 
    print "Description: ", objItem.Description 
    print "Device ID: ", objItem.DeviceID 
    print "Drive Type: ", objItem.DriveType 
    print "Error Cleared: ", objItem.ErrorCleared 
    print "Error Description: ", objItem.ErrorDescription 
    print "Error Methodology: ", objItem.ErrorMethodology 
    print "File System: ", objItem.FileSystem 
    print "Free Space: ", objItem.FreeSpace 
    print "Install Date: ", objItem.InstallDate 
    print "Last Error Code: ", objItem.LastErrorCode 
    print "Maximum Component Length: ", objItem.MaximumComponentLength 
    print "Media Type: ", objItem.MediaType 
    print "Name: ", objItem.Name 
    print "Number Of Blocks: ", objItem.NumberOfBlocks 
    print "PNP Device ID: ", objItem.PNPDeviceID 
    z = objItem.PowerManagementCapabilities 
    if z is None: 
        a = 1 
    else: 
        for x in z: 
            print "Power Management Capabilities: ", x 
    print "Power Management Supported: ", objItem.PowerManagementSupported 
    print "Provider Name: ", objItem.ProviderName 
    print "Purpose: ", objItem.Purpose 
    print "Quotas Disabled: ", objItem.QuotasDisabled 
    print "Quotas Incomplete: ", objItem.QuotasIncomplete 
    print "Quotas Rebuilding: ", objItem.QuotasRebuilding 
    print "Size: ", objItem.Size 
    print "Status: ", objItem.Status 
    print "Status Info: ", objItem.StatusInfo 
    print "Supports Disk Quotas: ", objItem.SupportsDiskQuotas 
    print "Supports File-Based Compression: ", objItem.SupportsFileBasedCompression 
    print "System Creation Class Name: ", objItem.SystemCreationClassName 
    print "System Name: ", objItem.SystemName 
    print "Volume Dirty: ", objItem.VolumeDirty 
    print "Volume Name: ", objItem.VolumeName 
    print "Volume Serial Number: ", objItem.VolumeSerialNumber