[EMAIL PROTECTED] writes:
> I'm currently using "os.listdir" to obtain the contents of some slow Windows
> shares. I think I've seen another way of doing this using the win32 library
> but I can't find the example anymore.
Do you want the list of files on the shares or the list of shares
itself? If the files, you can use something like FindFiles, but I
don't expect it to be that much faster just to obtain directory names
(likely the overhead is on the network).
If you just want a list of shares, you could use NetUseEnum, which
should be pretty speedy.
(FindFiles is wrapped by win32api, and NetUseEnum by win32net, both parts
of the pywin32 package)
Here's a short example of displaying equivalent output to the "net
use" command:
- - - - - - - - - - - - - - - - - - - - - - - - -
import win32net
status = {0 : 'Ok',
1 : 'Paused',
2 : 'Disconnected',
3 : 'Network Error',
4 : 'Connected',
5 : 'Reconnected'}
resume = 0
while 1:
(results, total, resume) = win32net.NetUseEnum(None, 1, resume)
for use in results:
print '%-15s %-5s %s' % (status.get(use['status'], 'Unknown'),
use['local'],
use['remote'])
if not resume:
break
- - - - - - - - - - - - - - - - - - - - - - - - -
Details on the the arguments to NetUseEnum can be found in MSDN (with
any pywin32 specifics in the pywin32 documentation).
> My main problem with using "os.listdir" is that it hangs my gui application.
> The tread running the "os.listdir" appears to block all other threads when
> it calls this function.
Yes, for a GUI you need to keep your main GUI thread always responsive
(e.g., don't do any blocking operations).
There are a number of alternatives to handling a long processing task
in a GUI application, dependent on both the operation and toolkit in
use. For wxPython, http://wiki.wxpython.org/index.cgi/LongRunningTasks
covers several of the options (and the theory behind them is generally
portable to other toolkits although implementation will change).
-- David
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