Locking a file under Windows
Hi all, I'm working on an application that will be used by several users at the same time. The user should be able to both read and write to some data file stored on our file server. My question is: how can I prevent that one user writes to the file while another user is reading it? I've seen some info on this in the fcntl module, but this module is not available under Windows, so I need something else. Here is what I've come up with so far: def WriteToFile(filename): for i in range(max_nr_tries): try: fd = os.open(filename, os.O_EXCL | os.O_WRONLY) except OSError, (error, message): if error == errno.ENOENT: # create first try: fd = os.open(filename, os.O_CREAT | os.O_EXCL | os.O_WRONLY) break except: print Oops! else: # try again later time.sleep(1) continue time.sleep(20) # + write close file I thought that, when this function gets to the last sleep(), I'd have an exclusive lock on the file. However, it seems I can still open the same file for reading/writing in another process (even os.O_EXCL). Is this normal? What am I missing? How can I open a file exclusively (for writing)? Thanks, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Locking a file under Windows
Thank you, Tim. The portalocker code seems to prevent reading while the file is locked for writing, but it doesn't seem to prevent multiple writes (nor multiple exclusive locks, for that matter). I guess it'd be better if I use the second suggestion, i.e. temporarily renaming the file for writing, and renaming it back to unlock it. Cheers, g Tim Golden [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Might be worth looking in the Python Cookbook area. I seem to remember several recipes to do this kind of thing cross-platform. eg, http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/65203 Also the pywin32 docs come with a flock-style example. Hope one of the two can help you. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Locking a file under Windows
Correction: it's probably best to use the Flock class by John Nielsen. Much cleaner and working great. Info can be found here: http://aspn.activestate.com/ASPN/docs/ActivePython/2.4/pywin32/Windows_NT_Files_.2d.2d_Locking.html Best regards, g Guy Lateur [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] I guess it'd be better if I use the second suggestion, i.e. temporarily renaming the file for writing, and renaming it back to unlock it. Cheers, g -- http://mail.python.org/mailman/listinfo/python-list
Obtaining an member function by name
Hi all, Suppose you have this class: class foo: def bar(): Suppose you also have the strings foo and bar. How can you obtain the function foo.bar()? Surely somebody knows.. TIA, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining an member function by name
Thanks for the feedback, people. I actually only need the bar part (instance methods). I added the foo part to generalize the question without really thinking it through first. Still, it has gotten me more information than I ever imagined. So thanks again. g -- http://mail.python.org/mailman/listinfo/python-list
how to use copy_reg/pickle (was Re: how to pickle unpicklable objects)
Thanks for the swift reply, Hans, and sorry for my delayed reaction.
I've been looking at the copy_reg module, but I can't seem to get it to
work.
wx.Font has a method called GetNativeFontInfo(), which returns a string
description of the font. Here's what I had hoped would have worked.
[code]
def reducef(objf):
return str(objf.GetNativeFontInfo())
def constrf(strf):
rv = wx.Font()
rv.SetNativeFontInfo(wx.String(strf))
return rv
copy_reg.pickle(wx.Font, reducef, constrf)
valf = wx.Font(10, wx.NORMAL, wx.NORMAL, wx.NORMAL, False, 'Arial')
rvf = pickle.dumps(valf)
[/code]
Unfortunately, this raises the exception:
pickle.PicklingError: Can't pickle wx._gdi.Font; proxy of C++ wxFont
instance at _c8bb6101_p_wxFont: it's not found as
wx._gdi.0;-13;0;0;0;400;0;0;0;1;0;0;0;32;Arial
Like I said, this is how I hoped it would work. I've read in the pickle docs
you should return the name of a global var containing the value to be
pickled as usual. I've tried this (without really understanding it), too,
but without any success.
Could somebody please help me to modify this example so that it works?
Best regards,
g
Hans Georg Krauthaeuser [EMAIL PROTECTED] schreef in bericht
news:[EMAIL PROTECTED]
Guy Lateur schrieb:
Hi all,
I've been writing an application containing a lot of settings which can
be
changed by the user. I'm using wx.Config to read/write these settings (to
the windows registry). This means I can only store strings, ints and
floats.
However, it would be very convenient if I could also store more general
objects. It seems to work for wx.Colour, but not for wx.Font. It raises a
TypeError: can't pickle PySwigObject objects.
The object is wrapped by SWIG. So, python can not know anything about it
and the object can not be pickled.
As far as I see, there are two possibilities
- define __getstate__ and __setstate__ in the c/c++-source or the .i
file (used by swig). This is only possible if the source is available
- use copy_reg (http://docs.python.org/lib/module-copyreg.html) to
register a 'reduce' function (I never used that).
I use the first option in the .i-File for a wrapped c++-class like this:
%extend UMDMResult {
%insert(python) %{
def __getstate__(self):
return (self.v,self.u,self.l,self.unit,self.Z0,self.Eta0,self.t)
def __setstate__(self,tup):
self.this = _umddevice.new_UMDMResult(tup[0],tup[1],tup[2],tup[3])
self.thisown=1
(self.Z0,self.Eta0,self.t)=[i for i in tup[4:]]
%}
}
regards
Hans Georg Krauthaeuser
--
http://mail.python.org/mailman/listinfo/python-list
how to pickle unpicklable objects
Hi all, I've been writing an application containing a lot of settings which can be changed by the user. I'm using wx.Config to read/write these settings (to the windows registry). This means I can only store strings, ints and floats. However, it would be very convenient if I could also store more general objects. It seems to work for wx.Colour, but not for wx.Font. It raises a TypeError: can't pickle PySwigObject objects. Does anybody a way to get around this? Is there some other module that would allow writing general (small) objects to the registry? Some sort of serialiser or something? TIA, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Yes! I finally got it to work. I've written a VBscript which I'll call from python. It uses Outlook.Redemption's SafeMailItem. No need to use IMAP or whatever services. Only weird thing is it doesn't put the msg in the Inbox, as I intended, but in the Drafts folder. Well, never mind that, it's a temp object anyway. Here's the code: Dim sItem, oItem Dim myDestBox, myNS, myOL Set myOL = CreateObject(Outlook.Application) Set myNS = myOL.GetNamespace(MAPI) Set sItem = CreateObject(Redemption.SafeMailItem) Set myDestBox = myNS.GetDefaultFolder(6) Set oItem = myDestBox.Items.Add(0) sItem.Item = oItem sItem.Import H:\Inhoud-iedereen\Inhoud-Guy\app\BBProject\data\test\Leemarchitect.msg, 3 sItem.Save Cheers, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
python version: import win32com.client myOL = win32com.client.Dispatch(Outlook.Application) myNS = myOL.GetNamespace(MAPI) sItem = win32com.client.Dispatch(Redemption.SafeMailItem) myDestBox = myNS.GetDefaultFolder(6) oItem = myDestBox.Items.Add(0) sItem.Item = oItem sItem.Import(H:\\Inhoud-iedereen\\Inhoud-Guy\\app\\BBProject\\data\\test\\Leemarchitect.msg, 3) sItem.Save() -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Ok, we didn't have the IMAP service running; we do now (no SSL). Connecting to the server is not a problem anymore, but logging in is. It works with the administrator account, but not with my personal account. We have restricted access to all machines in 10.0.0.0/255.255.255.0, which includes my machine. My password is empty (yeah, I know..). Could that be the problem? I'm using this: pw = '' Thanks, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Thanks for the suggestion, Tim. Unfortunately, I get a 'connection refused'
error on the line 'M = imaplib.IMAP4(server)'. It says socket.error:
(10061, 'Connection refused'). I've tried both the external IP adress and
the internal one (10.0.0.2). I'm sure there's a way to get over this, isn't
there?
One more question: can I avoid having (plain text) passwords in my code? I
guess I could make a special account for this with a password known by
everybody.
Cheers,
g
Tim Williams (gmail) [EMAIL PROTECTED] schreef in bericht
news:[EMAIL PROTECTED]
Lateral thinking ?
=== untested ===
import imaplib, time, sys
f = open(msg_file)
r = f.readlines()
f.close()
msg1 = ''.join(r)
server = 'my.exchangeserver.com' # or IP address
user = 'user'
pw = 'pw'
M = imaplib.IMAP4(server)
M.sock.settimeout(120)
M.login(user,pw)[1][0]
M.select()
M.append('INBOX',None ,time.time() , msg1) # Inbox or other folder name
print MESSAGE successfully saved
#M.close() Don't use close, deletes/purges items
M.logout()[1][0]
--
http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Are you saying it's unsafe to do that? I only need this for an application running locally, I mean, from within our LAN domain. We do have Exchange webmail. I've asked our Exchange expert wether or not IMAP is running; awaiting an answer.. Richard Brodie [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] I would have thought most wouldn't run IMAP in the clear; over SSL maybe. -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
I just tried this and it failed with IP addresses but not hostnames/machine names, try it again with the server name. :) Nope, same problem. I think TJG might be right, and our server probably doesn't have IMAP running (yet). Depends how secure you need it to be.For my simple stuff I just do something like this [snip] That's a nice thought, although the pw is still pretty visible. Maybe there's a way to encode/decode it using some sort of key (that only I know), that produces a truly unrecognisable pw? Thanks for the input, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Tim Williams (gmail) [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Could you SMTP it back in ? It would gain an extra Received: header but the rest of the email would most likely be unaltered. I don't understand what you mean. How does this have to do with connecting to the (probably-not-running) IMAP service? Not my area of expertise I'm afraid.If you manually run the script then you could use getpass() to prompt you for the password at run time. Not mine either.. ;) I'd like to avoid having the user type in a pw every time. Outlook doesn't seem to need that, so, unless that's unsafe, why should I? Or could I get xp to 'remember' it? Btw, Outlook does ask permission if you try to, say, read the body of message. Anyway, the approach I suggested earlier (pw encrypted using key) is probably unlikely to solve the security issue, either. I mean, if the key itself (or a reference to it) is in my code, then anyone reading that code can decrypt it, right? g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
guy lateur [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] | | Tim Williams (gmail) [EMAIL PROTECTED] schreef in bericht | news:[EMAIL PROTECTED] | Could you SMTP it back in ? It would gain an extra Received: header | but the rest of the email would most likely be unaltered. | | I don't understand what you mean. How does this have to do with connecting | to the (probably-not-running) IMAP service? | Hold on, I think I do know what you mean: using SMPT (running) instead of connecting to the IMAP service (probably-not-running). I'll let you know how I get along with that. I may still need a way to convert a DocumentItem to a MailItem, though. Cheers, g -- http://mail.python.org/mailman/listinfo/python-list
Outlook COM: how to create a MailItem from a .msg file
Hi all, I've been writing some code to move some data into and out of Outlook (2003 + Exchange 2003). I have some email .msg files on our file server, and I can't seem to get them back into the Outlook object I need, ie a MailItem. I've tried to use App.CopyFile() to (temporarily) put the file in an OL folder. Problem is, however, this returns a DocumentItem and not a MailItem. Is there any way I could 'cast' this DItem into a MItem? Apparently, OL treats it as any general document - which, btw, shows in the view, too; it has another icon and you have to open it to view it). Or maybe there's another way to open it; I really only need the object in memory. Any ideas? TIA, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Outlook COM: how to create a MailItem from a .msg file
Thanks for the tip, Simon, but unfortunately it doesn't work; it says The interface name 'MailItem' does not appear in the same library as object 'win32com.gen_py.Microsoft Outlook 11.0 Object Library._DocumentItem instance at 0x29912600 Anything else I could try? Cheers, g Simon Brunning [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Well, I don't know anything about Outlook's COM interface, so I don't know if this will work, but you might try win32com.client.CastTo(). Something like: my_MItem = win32com.client.CastTo(my_DItem, 'MItem') -- Cheers, Simon B, [EMAIL PROTECTED], http://www.brunningonline.net/simon/blog/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Office COM automatisation - calling python from VBA
Just an update: I've succeeded in writing a COM server, exposing wxPy funtcionality. I've also used this object from within Outlook - 2 lines of VBA: dispatch COM object call method. If anyone is interested, I could post the source. A few days ago, I honestly didn't think I'd already be this far by now (it took about half a day). Especially the chapter of the book by Mark Hammond (my copy of which is being dispatched as we speak) was very helpful. 8) g -- http://mail.python.org/mailman/listinfo/python-list
Office COM automatisation - calling python from VBA
Hi all, I am trying to write some code (macro's, if you like) to glue together our Office applications (mainly Word, Excel and Outlook). We have a lot of different projects going on simultaneously. The idea is to develop a centralized framework (starting point, common interface) for my users to view/control their documents/correspondence, on a per project basis. As an example, I'd like to have a control (button, menu entry) in Outlook that allows my users to bring up, say, an email for a certain contact (architect, owner, engineer, ..) on a certain project, with certain attachments, .. Currently, I have a 'public folder' in OL (Exchange) that reflects our project structure. I'll be using COM, and I could probably make an application that controls Outlook (externally). But I'd also like to have this functionality exposed in OL itself. So I guess I'll need to use VBA, but I don't really like VBA - relax, please, it's just an opinion.. ;) So, ideally, I'd like to program as much as possible in python (I'm pretty new to that, too, btw), and only use VBA if needed - say, to call python objects/methods (+ wxGUI, please). Would that be an easy, a hard, or an insane strategy? Maybe there are some tutorials on this (searched the list, but didn't quite find any). If anyone happens to have any xp/tips on this, please, fire away! Best regards, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Office COM automatisation - calling python from VBA
You want to use --- Python ??? So far I haven't been informed of any serious arguments as to why I wouldn't. How, pray tell, do you add up (VBA+VBA+VBA+VBA+VBA) and have it come out equaling Python? My total was this: 57*python + wxPython. Do you think that might please a few of us here in this particular newsgroup? Yes. -- http://mail.python.org/mailman/listinfo/python-list
Where is Word - COM solution
Hi all,
This goes back to my previous post called Where is Word. In short, I
wanted to make a temporary file (directory listing), open it in Word to let
the user edit, layout and print it, and then delete the temp file
afterwards.
I almost got it to work without using COM, but there was a problem when the
user runs the script a second time without closing Word after the first
time. In that case, the temp file could not be deleted (see original post).
Luckily, the following code was provided to me by a good fellow named
Hughes, Chad O. Thanks again for your time and effort on this, Chad!
code
import os
from win32com.client import Dispatch
dirlist = os.listdir(os.getcwd())
word = Dispatch('Word.Application')
word.Documents.Add(Visible = True)
word.Visible = True
for line in dirlist:
word.Selection.TypeText(line + '\r\n')
/code
So the questions 'where is Word' and 'how to delete the temp file' have
become obsolete. Nice, eh? COM rules!
Cheers,
g
--
http://mail.python.org/mailman/listinfo/python-list
List of all installed applications (XP)?
Hi all,
I'm trying to generate a (exhaustive) list of all the applications that are
installed on a user's machine. I've written some code that reads the
registry ('App Paths'):
code
appKey = win32api.RegOpenKeyEx(win32con.HKEY_LOCAL_MACHINE,
'SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths', 0, win32con.KEY_READ)
sklist = win32api.RegEnumKeyEx(appKey)
for skey in sklist:
print skey[0]
try:
wPath = win32api.RegQueryValue(appKey, skey[0])
print '' + wPath
except pywintypes.error,details:
print '### Error [pywintypes.error]: ' + details[2]
win32api.RegCloseKey(appKey)
/code
This works, but I was wondering wether that is the best way to go about
this? Can I be sure it lists *all* the applications? What does it mean when
a pywintypes.error is thrown (code 13, 'Invalid data')?
Thanks,
g
--
http://mail.python.org/mailman/listinfo/python-list
Re: List of all installed applications (XP)?
| What -- from your point of view -- is an application? Good question. Let me try to elaborate: I would like to know if people in our company (building techniques) are using non-licensed software (eg Photoshop, Office, AutoCad). So I guess by 'application' I mean commercial software packages like those. Is it safe to assume those apps get listed in AppPath? I don't think my users are cunning enough to mess with the registry, so I guess we're talking about the 'standard' installation. | Neither does every app have an Add/Remove Program | entry. (And some things have entries which aren't apps). Just out of curiosity: can one read the info/list one gets in Add/Remove Programs? It's not a problem I get results that aren't actually apps, but it is important I get all apps. Thanks, g -- http://mail.python.org/mailman/listinfo/python-list
Re: List of all installed applications (XP)?
| [TJG] | Hmmm. While I understand your requirement, it's not as | thought there's some easily-discernible charactersistics | of commercial software packages which should have licenses | but which don't No? Really? How disappointing.. ;) | [TJG] | By the sound of it, you're almost better off compiling | a list of .exe from machines and building up a blacklist | from those. That was kind of the idea at first. However, we have a file server (H:), and I've seen apps installed on it. So it's pretty hard to know who actually uses that app just by the .exe - could be several people, too, I guess. That's why I thought of the registry - which, as you rightfully pointed out, isn't a perfect strategy, either. I do understand that I can remove those apps by removing the .exe (+ containing folder, probably), but I'd also like to get an idea of who is using what right now (and why). That might come in handy at some point later on. Btw, is there a module called pyWhy or something? :) Maybe I should also follow Paul's advice and go through the registry on a vendor/app basis. I mean, ATM, I'm not really concerned about a user having, say, Cubase installed without a license. My priority right now is to make sure we have licenses for certain apps we use professionally/commercially (ACad, Office, ..). Thanks for the input, people, much appreciated, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
Ok, I've tried various proposed solutions, and this is what I've come up
with:
code
# get Word path
wordKey = win32api.RegOpenKeyEx(win32con.HKEY_LOCAL_MACHINE,
'SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths', 0, win32con.KEY_READ)
wPath = win32api.RegQueryValue(wordKey, 'winword.exe')
win32api.RegCloseKey(wordKey)
# open/write tempfile delete afterwards
fD, fN = tempfile.mkstemp('.txt')
fH = os.fdopen(fD, 'w')
fH.write('blabla')
fH.close()
os.spawnl(os.P_WAIT, wPath, 'winword.exe', fN)
os.remove(fN)
/code
The above seems to work ok, but if you run the script a second time without
first closing Word(1), the os.spawnl() doesn't seem to block. As a
consequence, the tempfile is not removed (because Word still has it open
when os.remove(fN) is called).
Is this behaviour normal? Anything I can do about this?
Thanks,
g
--
http://mail.python.org/mailman/listinfo/python-list
Where is Word?
Hi all, I need a way to get the path where MS Word/Office has been installed. I need to start Word from a script (see earlier post), but it doesn't work if I don't know its path. So os.system(winword.exe %s % fileName) doesn't always work; I need to say os.system(C:\Program Files\Microsoft Office\Office10\winword.exe %s % fileName). Any ideas? TIA, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
Unfortunately, I need to open/edit a (temporary) text file with Word, and those are opened by default with UltraEdit (or Notepad or..). Thanks for the tip, though. Anything else? Do I need to read the registry? g While this doesn't answer the question you're asking, I believe it does solve the problem you're facing. Relying on the fact that the Microsoft Office products will have associated themselves as the default (Open) action with files of the appropriate extensions, you can use os.startfile: code import os os.startfile (c:/temp/blah.doc) /code HTH TJG This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
Thanks, but could you pretty please post some code that does this? I'm new to Python, let alone COM.. TIA, g Tomasz Lisowski [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] You may try to launch Word as a COM object and control it directly from Python using the COM object methods. This does not require you to know the application's path, only the COM object identifier. TLis -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
Thank you very much; I'll check that out shortly. g Tim Golden [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] OK, a slightly more intelligent idea in place of my previous one. You can use win32api.ShellExecute (from the pywin32 extensions) which is like a beefed-up os.startfile. In particular, it allows you to pass parameters to the command. So... code import win32api win32api.ShellExecute ( 0, # hwnd open, # action; could be print etc. winword.exe, # application c:/temp/temp.txt, #params ., # working directory 1 # show/don't show ) /code TJG This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
My original post is called Start application continue after app exits. Is there a better way to refer to past posts, btw? I want to make a temporary file (directory listing), open it in Word to let the user edit, layout and print it, and then delete the temp file afterwards. I don't think we'll be able to fully automate it, though. The user should be able to set her own fonts and stuff. g Peter Hansen [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Guy Lateur wrote: I need a way to get the path where MS Word/Office has been installed. I need to start Word from a script (see earlier post), (Asking us to refer to some earlier post that may or may not even be available on our news servers isn't the best way to get us the info. A sentence or two summarizing would work best, I think.) Can you describe what the user is going to do after Word pops open with this file in it? Maybe there are simpler ways to do what you are trying to accomplish, aside from the specific issue of how to open Word itself. For example, maybe the work you plan to have the user accomplish can be done automatically by controlling Word with COM. -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
No, the subject is a good way to refer to past posts. I just meant forcing us to dig back, when the post may no longer even be on our servers, is not helpful. I agree, my bad. (Perhaps I should ask why anyone would want to waste time putting arbitrary fonts and colours and such around a simple directory listing, but I won't. wink) Please don't.. ;) g -- http://mail.python.org/mailman/listinfo/python-list
Re: Where is Word?
Thanks for all the feedback, everyone. What a helpfull community this is! It's actually kinda hard keeping up with y'all.. Cheers, g Guy Lateur [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Hi all, I need a way to get the path where MS Word/Office has been installed. I need to start Word from a script (see earlier post), but it doesn't work if I don't know its path. So os.system(winword.exe %s % fileName) doesn't always work; I need to say os.system(C:\Program Files\Microsoft Office\Office10\winword.exe %s % fileName). Any ideas? TIA, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Start application continue after app exits
This may be getting somewhat OT, but I'd like to dig a little deeper into this. First of all, security (as in some other proces reading/disclosing the data) is not an issue in this case. The thing is, though, a user could run the script twice, not having closed Word after the first time. So I guess I need unique filenames. Am I right in assuming tmpFile = tempfile.NamedTemporaryFile() does that automatically? More generally speaking, I'm not sure it's a question of windows vs linux. I often have files open in UltraEdit, which I can then change in some other proces. When I reactivate UEdit, it updates (or closes) the file. So maybe it loads the file in memory and then closes it, and then opens it again for writing. Or something.. To be honest, I don't really understand what it means to have the same file open for writing by several processes. You don't want to modify data which is already being modified by someone else, do you? I mean, how do you determine what changes to apply first, and to what version? Or is the file just constantly being overwritten on a first-come-first-served basis? I may well be completely braindead, here.. g All this without having the file is in use errors, because well... only windows has those :-) Oh, and btw: you'll notice that gVim is smart enough to notice that the file is no longer there, or that it is there but is more recent than his working copy (if you re-edited with gedit, for example). -- Renato Usi Fedora? Fai un salto da noi: http://www.fedoraitalia.org -- http://mail.python.org/mailman/listinfo/python-list
Re: how to retrieve info about print jobs
Perhaps I should mention this: we have printers from HP, and they come with a tool called JetDirect. This allows you to browse to it and check it's status/stats. Maybe I should write something that automatically gathers the info from the printer homepage. Would that be a good/easy way to go about it? Alternatively, I could send the info about a user's print jobs from their individual pc to a central 'database', and then get it from there. Just brainstorming out loud, here.. Guy Lateur [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] Hmm, this only seems to work for jobs that originate on the machine running the script. I really need something that actually gathers the info from the printers (net-based). Would that be possible at all? -- http://mail.python.org/mailman/listinfo/python-list
Re: how to retrieve info about print jobs
Hmm, this only seems to work for jobs that originate on the machine running the script. I really need something that actually gathers the info from the printers (net-based). Would that be possible at all? Simon Brunning [EMAIL PROTECTED] schreef in bericht news:[EMAIL PROTECTED] On 6/2/05, Guy Lateur [EMAIL PROTECTED] wrote: We have several printers in our company network. I would like to know if it is possible to check the current print jobs/queues for each of them. That way, if a user wants to print something (big), I could give her a hint as to which printer would get the job done first. We're using win2k and xp, btw. You can probably do this with WMI. Ah yes, see http://www.c-sharpcorner.com/Code/2002/May/IntPrinterQWMI.asp. You can drive WMI from Python with Tim Golden's WMI module - http://tgolden.sc.sabren.com/python/wmi.html. Do let us know what you come up with! -- Cheers, Simon B, [EMAIL PROTECTED], http://www.brunningonline.net/simon/blog/ -- http://mail.python.org/mailman/listinfo/python-list
Start application continue after app exits
Hi all, I was wondering if it would be possible to launch an application, block until the app exits, and do some cleanup afterwards. Maybe an example will be clearer: I would like to make a temperary (text) file, open it with MS Word for the user to edit/layout/print, and then delete the temp file after the user shuts down Word. Is this feasible? Thanks, g -- http://mail.python.org/mailman/listinfo/python-list
Re: Start application continue after app exits
Also note that this method of creating tempfiles is technically unsafe, as it is theoretically possible that another process would create a file of the same name in the same directory and then try to use it, resulting in a race condition between the two processes. This is practically unlikely, however, and I'm a pragmatist. I see what you mean, but wouldn't a call to open(fn, 'w') on a filename that's in use (for reading or writing) result in an error condition or something? I'm a noob, btw. Thanks for the info, guys, much appreciated. I'll try it soon (on XP) - I'm a pragmatist, too, you see.. -- http://mail.python.org/mailman/listinfo/python-list
how to retrieve info about print jobs
Hi all, We have several printers in our company network. I would like to know if it is possible to check the current print jobs/queues for each of them. That way, if a user wants to print something (big), I could give her a hint as to which printer would get the job done first. We're using win2k and xp, btw. Any ideas? I'm pretty new to python, I'm afraid.. TIA, g -- http://mail.python.org/mailman/listinfo/python-list
