pywin32 programming error on Win7 with shell.SHGetDesktopFolder,desktop.BindToObject,desktop.GetDisplayNameOf

[iMath]

When running the following code on WinXP , all is fine ,
--------------------------------------------------------------
from win32com.shell import shell

def launch_file_explorer(path, files):

folder_pidl = shell.SHILCreateFromPath(path,0)[0]
desktop = shell.SHGetDesktopFolder()
shell_folder = desktop.BindToObject(folder_pidl, None,shell.IID_IShellFolder)
name_to_item_mapping = dict([(desktop.GetDisplayNameOf(item, 0), item) for item in shell_folder])
to_show = []
for file in files:
if file not in name_to_item_mapping:
raise Exception('File: "{}" not found in "{}"'.format(file, path))
to_show.append(name_to_item_mapping[file])
shell.SHOpenFolderAndSelectItems(folder_pidl, to_show, 0)
import os


p=r'E:\aa'
print(os.listdir(p))
launch_file_explorer(p, os.listdir(p))
--------------------------------------------------------------

however ,when tested on Win7,I got the following error

--------------------------------------------------------------

['b1', 'b2', 't.txt']
Traceback (most recent call last):
File "D:\g.py", line 21, in <module>
launch_file_explorer(p, os.listdir(p))
File "D:\g.py", line 13, in launch_file_explorer
raise Exception('File: "{}" not found in "{}"'.format(file, path))
Exception: File: "t.txt" not found in "E:\aa"
--------------------------------------------------------------
I nearly have no experience on pywin32 programming ,the above code is googled,anyone can help me fix this error ?thanks in advance !

[Tim Golden]

On 08/11/2013 03:30, iMath wrote:
>
> When running the following code on WinXP , all is fine ,
> --------------------------------------------------------------
> from win32com.shell import shell
>
> def launch_file_explorer(path, files):
>
> folder_pidl = shell.SHILCreateFromPath(path,0)[0]
> desktop = shell.SHGetDesktopFolder()
> shell_folder = desktop.BindToObject(folder_pidl, None,shell.IID_IShellFolder)
> name_to_item_mapping = dict([(desktop.GetDisplayNameOf(item, 0), item) for item in shell_folder])
> to_show = []
> for file in files:
> if file not in name_to_item_mapping:
> raise Exception('File: "{}" not found in "{}"'.format(file, path))
> to_show.append(name_to_item_mapping[file])
> shell.SHOpenFolderAndSelectItems(folder_pidl, to_show, 0)
> import os
>
>
> p=r'E:\aa'
> print(os.listdir(p))
> launch_file_explorer(p, os.listdir(p))

Did you mean to call .GetDisplayNameOf against the desktop folder? I
would have thought you wanted shell_folder.GetDisplayNameOf(item, 0).

TJG

[iMath]

在 2013年11月8日星期五UTC+8下午5时47分43秒，Tim Golden写道：

I mainly want to use shell.SHOpenFolderAndSelectItems()

[iMath]

在 2013年11月8日星期五UTC+8下午5时47分43秒，Tim Golden写道：

[MRAB]

On 08/11/2013 03:30, iMath wrote:
>

It's building a dict where the key is the result of
desktop.GetDisplayNameOf(item, 0), and it's then not finding a given
name in that dict.

Try printing the keys to see what's there. It might be that
desktop.GetDisplayNameOf(item, 0) returns different strings in Win7
from those in WinXP.

[iMath]

thanks, I found out the reason： this question has no relationship with Win7
or WinXP,but related to the users' system setting .
GetDisplayNameOf() only gives the DISPLAY name ,so the filename with or without extension acording to whether the user want to view files in the explorer with extension .
my settings is that filename with extension on WinXP but not on Win7,while os.listdir() returns filenames with extension on both of them ,this caused my problem here .
so anyone know how to fix my problem ? I mainly want to use shell.SHOpenFolderAndSelectItems() here.

[iMath]

I solved it like the following

from win32com.shell import shell, shellcon
import os
def launch_file_explorer(path, files):
'''
Given a absolute base path and names of its children (no path), open
up one File Explorer window with all the child files selected
'''

folder_pidl = shell.SHILCreateFromPath(path,0)[0]
desktop = shell.SHGetDesktopFolder()
shell_folder = desktop.BindToObject(folder_pidl, None,shell.IID_IShellFolder)

name_to_item_mapping = dict([(desktop.GetDisplayNameOf(item, shellcon.SHGDN_FORPARSING|shellcon.SHGDN_INFOLDER), item) for item in shell_folder])
print(name_to_item_mapping)

to_show = []
for file in files:

if file in name_to_item_mapping:
to_show.append(name_to_item_mapping[file])
# else:
# raise Exception('File: "%s" not found in "%s"' % (file, path))

shell.SHOpenFolderAndSelectItems(folder_pidl, to_show, 0)

[iMath]

I solved it like the following

from win32com.shell import shell, shellcon
import os
def launch_file_explorer(path, files):
'''
Given a absolute base path and names of its children (no path), open
up one File Explorer window with all the child files selected
'''

folder_pidl = shell.SHILCreateFromPath(path,0)[0]
desktop = shell.SHGetDesktopFolder()
shell_folder = desktop.BindToObject(folder_pidl, None,shell.IID_IShellFolder)

name_to_item_mapping = dict([(desktop.GetDisplayNameOf(item, shellcon.SHGDN_FORPARSING|shellcon.SHGDN_INFOLDER), item) for item in shell_folder])
print(name_to_item_mapping)

to_show = []
for file in files:

if file in name_to_item_mapping:
to_show.append(name_to_item_mapping[file])
# else:
# raise Exception('File: "%s" not found in "%s"' % (file, path))

shell.SHOpenFolderAndSelectItems(folder_pidl, to_show, 0)