Re: Check file is locked?
In message 652cca82-44a3-473f-b640- c2336a9cf...@v15g2000prn.googlegroups.com, Rajat wrote: ... my whole idea is to close the wordpad / notepad application so that I can delete the file and the directory where this file resides. Don't you think the user might have that application open for a reason? -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Jul 8, 12:45 pm, Tim Golden m...@timgolden.me.uk wrote: Rajat wrote: On Jul 8, 4:57 am, Lawrence D'Oliveiro l...@geek- central.gen.new_zealand wrote: In message mailman.2795.1246997268.8015.python-l...@python.org, Christian Heimes wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. My OS is a windows XP sp3. All I'm trying to achieve is to close an application ( which could be a notepad, a wordpad or some other text editor) that have opened my file. Once the file is closed I can easily delete that file. I guess, if file is opened by one of that application, the file must be locked and so is the reason I cannot delete the file. I assume that your real requirement is: I can't open/close/delete this file; it must be locked by something else; what is that something else? The simplest thing is probably to run sysinternals' handle util: http://technet.microsoft.com/en-us/sysinternals/bb896655.aspx and use the subprocess module to parse the output. That will give you the pid, and you can then use, eg, psutil: http://code.google.com/p/psutil/ to get the details of the process. TJG- Hide quoted text - - Show quoted text - I've used the Handle.exe and got the following results: -- notepad.exe pid: 3540 COMP\rajatd C: File (RW-) C:\Documents and Settings\rajatd\Desktop 10: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 44: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 7C: Section \BaseNamedObjects\ShimSharedMemory -- wordpad.exe pid: 2212 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents I've also parsed this output for the PIDS. But no where in the result I got to know what file has been associated with a PID. Does for this I need to use pustil? -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
Rajat wrote: I've used the Handle.exe and got the following results: -- notepad.exe pid: 3540 COMP\rajatd C: File (RW-) C:\Documents and Settings\rajatd\Desktop 10: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 44: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 7C: Section \BaseNamedObjects\ShimSharedMemory -- wordpad.exe pid: 2212 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents I've also parsed this output for the PIDS. But no where in the result I got to know what file has been associated with a PID. Does for this I need to use pustil? Well unless I'm missing your point considerably, the output tells you all you need to know: notepad.exe (pid 3540) has some kind of handle open on the desktop, the common controls DLL and an area of shared memory. As has been pointed out elsewhere, notepad doesn't hold the file open which it's editing: it opens it, reads the contents, and closes it again. For demonstration purposes: code import os, sys import subprocess f = open (sys.executable) subprocess.call ([handle, sys.executable]) f.close () /code TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Jul 9, 1:21 pm, Tim Golden m...@timgolden.me.uk wrote: Rajat wrote: I've used the Handle.exe and got the following results: ------ notepad.exe pid: 3540 COMP\rajatd C: File (RW-) C:\Documents and Settings\rajatd\Desktop 10: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 44: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 7C: Section \BaseNamedObjects\ShimSharedMemory ------ wordpad.exe pid: 2212 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents I've also parsed this output for the PIDS. But no where in the result I got to know what file has been associated with a PID. Does for this I need to use pustil? Well unless I'm missing your point considerably, the output tells you all you need to know: notepad.exe (pid 3540) has some kind of handle open on the desktop, the common controls DLL and an area of shared memory. As has been pointed out elsewhere, notepad doesn't hold the file open which it's editing: it opens it, reads the contents, and closes it again. For demonstration purposes: code import os, sys import subprocess f = open (sys.executable) subprocess.call ([handle, sys.executable]) f.close () /code TJG- Hide quoted text - - Show quoted text - The Notepad process information is fine here. However, with wordpad the results are not much differentiating: -- wordpad.exe pid: 2832 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents -- wordpad.exe pid: 844 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents Both the wordpad applications opened 2 totally different files kept at different locations on the system. So, on the basis of above results one can not say out of these 2 wordpad apps which is the right one that could be closed. The only different thing among the two is the PIDs. -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
Rajat wrote: The Notepad process information is fine here. However, with wordpad the results are not much differentiating: -- wordpad.exe pid: 2832 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents -- wordpad.exe pid: 844 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents Both the wordpad applications opened 2 totally different files kept at different locations on the system. So, on the basis of above results one can not say out of these 2 wordpad apps which is the right one that could be closed. The only different thing among the two is the PIDs. Rajat: are you trying to find out which app is holding a file open? If so -- run handle.exe *for that filename*, as my code does: handle.exe filename This will only show which apps are holding that file. I suspect you're running handle.exe on its own which will show everything which is holding handles on anything. 1) Use wordpad.exe to open c:\temp\blah.txt 2) Run handle.exe c:\temp\blah.txt 3) Observe (at least on my Win XP Sp3 machine) that *no* process has a handle open on c:\temp\blah.txt, including wordpad, which presumably opens the file, reads it, and closes it again. The items you're seeing above are system-level handles which wordpad is holding for reasons of its own, but none of them is a user filename. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Jul 9, 3:21 pm, Tim Golden m...@timgolden.me.uk wrote: Rajat wrote: The Notepad process information is fine here. However, with wordpad the results are not much differentiating: ------ wordpad.exe pid: 2832 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents ------ wordpad.exe pid: 844 COMP\rajatd 1C: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 40: File (RW-) C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common- Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83 74: Section \BaseNamedObjects\ShimSharedMemory F8: Section \BaseNamedObjects \CiceroSharedMemDefaultS-1-5-21-57989841-1580818891-839522115-1653 170: Section \BaseNamedObjects\RotHintTable 184: File (RW-) C:\Documents and Settings\rajatd\My Documents Both the wordpad applications opened 2 totally different files kept at different locations on the system. So, on the basis of above results one can not say out of these 2 wordpad apps which is the right one that could be closed. The only different thing among the two is the PIDs. Rajat: are you trying to find out which app is holding a file open? If so -- run handle.exe *for that filename*, as my code does: handle.exe filename This will only show which apps are holding that file. I suspect you're running handle.exe on its own which will show everything which is holding handles on anything. 1) Use wordpad.exe to open c:\temp\blah.txt 2) Run handle.exe c:\temp\blah.txt 3) Observe (at least on my Win XP Sp3 machine) that *no* process has a handle open on c:\temp\blah.txt, including wordpad, which presumably opens the file, reads it, and closes it again. The items you're seeing above are system-level handles which wordpad is holding for reasons of its own, but none of them is a user filename. TJG- Hide quoted text - - Show quoted text - Thanks Tim for the details. Just further on this, my whole idea is to close the wordpad / notepad application so that I can delete the file and the directory where this file resides. With notepad it is no more a problem. But I'm concerned about the wordpad now. -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
En Thu, 09 Jul 2009 07:53:29 -0300, Rajat rajat.dud...@gmail.com escribió: Thanks Tim for the details. Just further on this, my whole idea is to close the wordpad / notepad application so that I can delete the file and the directory where this file resides. With notepad it is no more a problem. But I'm concerned about the wordpad now. I don't see Wordpad keeping the file open either. If you can't remove the file, use handle.exe filename.txt to discover which process is holding it open, as Tim already explained. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
Rajat wrote: On Jul 8, 4:57 am, Lawrence D'Oliveiro l...@geek- central.gen.new_zealand wrote: In message mailman.2795.1246997268.8015.python-l...@python.org, Christian Heimes wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. My OS is a windows XP sp3. All I'm trying to achieve is to close an application ( which could be a notepad, a wordpad or some other text editor) that have opened my file. Once the file is closed I can easily delete that file. I guess, if file is opened by one of that application, the file must be locked and so is the reason I cannot delete the file. I assume that your real requirement is: I can't open/close/delete this file; it must be locked by something else; what is that something else? The simplest thing is probably to run sysinternals' handle util: http://technet.microsoft.com/en-us/sysinternals/bb896655.aspx and use the subprocess module to parse the output. That will give you the pid, and you can then use, eg, psutil: http://code.google.com/p/psutil/ to get the details of the process. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Re: Check file is locked?
Rajat wrote: On Jul 8, 4:57 am, Lawrence D'Oliveiro l...@geek- central.gen.new_zealand wrote: In message mailman.2795.1246997268.8015.python-l...@python.org, Christian Heimes wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. My OS is a windows XP sp3. All I'm trying to achieve is to close an application ( which could be a notepad, a wordpad or some other text editor) that have opened my file. Once the file is closed I can easily delete that file. I guess, if file is opened by one of that application, the file must be locked and so is the reason I cannot delete the file. Please suggest if this is fine. Neither Wordpad nor Notepad lock the files they have open, at least in my experience. Specifically, I just tried it in XP Sp3. I created a file, opened the file in one of the apps, then deleted the file before closing the app. Word for Windows, on the other hand, has locked files for me in the past. When I tried that one just now (on a text file, because that was easy), results were rather confusing. It let me delete the file, but then when I tried to save it, it gave me a permissions error. My experience with Winword has been that it's in a world of its own, best not messed with. And this latest version (Office 2007 or somesuch) is so modern that it has removed the Help-About menu to make sure I can't even tell what version it is. Next time I rebuild my system, I think I'll go back to Office 97. But perhaps your question is intended to cover the general case. You can get a program from sysinternals called handle, which will list all the files (and other handles) opened by all the processes in the system. You may be able to run that (with subprocess, or just from the commandline), and filter its output for the information you want. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Wed, 08 Jul 2009 00:06:11 -0700, Dennis Lee Bieber wrote: Also, some applications may still have the file open, but Windows allows one to make copies of that file... Not always though... some applications open files for exclusive read access. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Tue, 07 Jul 2009 21:31:12 -0700, Rajat wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. My OS is a windows XP sp3. All I'm trying to achieve is to close an application ( which could be a notepad, a wordpad or some other text editor) that have opened my file. Once the file is closed I can easily delete that file. I guess, if file is opened by one of that application, the file must be locked and so is the reason I cannot delete the file. Windows doesn't allow you to delete (or rename) open files. It's up to the application as to whether it keeps the file open or closes it once it has been read. Please suggest if this is fine. If you can't delete the file, then you can't delete it. You shouldn't be trying to kill off applications so that you can delete the file. Just do what other Windows programs (including those which are part of Windows) do: display a dialog telling the user to close the application then try again. -- http://mail.python.org/mailman/listinfo/python-list
Check file is locked?
How to check if a particular file is locked by some application? (i.e. the file is opened by some application)? -- Regrads, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
dudeja.ra...@gmail.com wrote: How to check if a particular file is locked by some application? (i.e. the file is opened by some application)? It depends on your operating system. By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
In message mailman.2795.1246997268.8015.python-l...@python.org, Christian Heimes wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. -- http://mail.python.org/mailman/listinfo/python-list
Re: Check file is locked?
On Jul 8, 4:57 am, Lawrence D'Oliveiro l...@geek- central.gen.new_zealand wrote: In message mailman.2795.1246997268.8015.python-l...@python.org, Christian Heimes wrote: By the way most operating systems don't lock a file when it's opened for reading or writing or even executed. The general conclusion seems to be that mandatory locking is more trouble than it's worth. My OS is a windows XP sp3. All I'm trying to achieve is to close an application ( which could be a notepad, a wordpad or some other text editor) that have opened my file. Once the file is closed I can easily delete that file. I guess, if file is opened by one of that application, the file must be locked and so is the reason I cannot delete the file. Please suggest if this is fine. -- http://mail.python.org/mailman/listinfo/python-list
