Steven D'Aprano [EMAIL PROTECTED] wrote:
I think you're confused. Or possibly I'm confused. Or both.
I think it is you, but then I could be wrong.
It seems to me that you're assuming that the OP has opened the file
for reading first, and *then* another process comes along and wants to
open
def isGrowing(f, timeout):
ssize = os.path.getsize(f)
time.sleep(timeout)
esize =os.path.getsize(f)
return esize != ssize
On windows, this returns the size of the file as it _will be_, not the
size that it currently is.
Why do you say that? It most
Martin v. Löwis wrote:
def isGrowing(f, timeout):
ssize = os.path.getsize(f)
time.sleep(timeout)
esize =os.path.getsize(f)
return esize != ssize
On windows, this returns the size of the file as it _will be_, not the
size that it currently is.
Why do you
Why do you say that? It most definitely returns what the size currently
is, not what it will be in the future (how could it know, anyway).
I've seen this before, when copying a file in Windows. Windows reports
the size the file will be after the copy is complete (it knows, after
all, the
Steven D'Aprano [EMAIL PROTECTED] wrote:
On Wed, 19 Mar 2008 12:34:34 +, Duncan Booth wrote:
By default Python on Windows allows you to open a file for reading
unless you specify a sharing mode which prevents it:
But the OP is talking about another process having opened the file for
On Mar 20, 6:42 am, Duncan Booth [EMAIL PROTECTED] wrote:
Steven D'Aprano [EMAIL PROTECTED] wrote:
On Wed, 19 Mar 2008 12:34:34 +, Duncan Booth wrote:
By default Python on Windows allows you to open a file for reading
unless you specify a sharing mode which prevents it:
But the OP is
Sean DiZazzo [EMAIL PROTECTED] wrote:
In this case, there will be so few people touching the system, that I
think I can get away with having the copy be done from Unix, but it
would be nice to have a general way of knowing this on Windows.
Doesn't the CreateFile call I posted earlier do
On Thu, 20 Mar 2008 13:42:22 +, Duncan Booth wrote:
Steven D'Aprano [EMAIL PROTECTED] wrote:
On Wed, 19 Mar 2008 12:34:34 +, Duncan Booth wrote:
By default Python on Windows allows you to open a file for reading
unless you specify a sharing mode which prevents it:
But the OP is
On Thu, 20 Mar 2008 10:45:03 -0700, Sean DiZazzo wrote:
After trying again this morning, the file is opened for reading. I must
have had some wonky permissions on that file, so the error method won't
work.
Then fix the permissions.
--
Steven
--
Sean DiZazzo [EMAIL PROTECTED] wrote:
The overall idea is to be able to tell if a file has finished being
placed in a directory without any control over what is putting it
there.
There is simply no way to do this on Windows that works in the general
case.
--
Tim Roberts, [EMAIL PROTECTED]
On Tue, 18 Mar 2008 13:58:33 -0700, Sean DiZazzo wrote:
I'm seeing some behavior that is confusing me. I often use a simple
function to tell if a file is growing...ie being copied into a certain
location. (Can't process it until it's complete)
Surely though, under Windows, while something
Steven D'Aprano [EMAIL PROTECTED] wrote:
This whole approach
assumes that Windows does the sensible thing of returning a unique
error
code when you try to open a file for reading that is already open for
writing.
So how would you use a file to share data then?
By default Python on
On Wed, 19 Mar 2008 12:34:34 +, Duncan Booth wrote:
Steven D'Aprano [EMAIL PROTECTED] wrote:
This whole approach
assumes that Windows does the sensible thing of returning a unique
error
code when you try to open a file for reading that is already open for
writing.
So how would
Hi all,
I'm seeing some behavior that is confusing me. I often use a simple
function to tell if a file is growing...ie being copied into a certain
location. (Can't process it until it's complete) My function is not
working on windows, and I'm wondering if I am missing something
simple, or if I
Sean DiZazzo [EMAIL PROTECTED] wrote:
On windows, this returns the size of the file as it _will be_, not the
size that it currently is. Is this a feature? What is the proper way
to get the current size of the file? I noticed
win32File.GetFileSize() Does that behave the way I expect?
On Mar 18, 2:27 pm, Duncan Booth [EMAIL PROTECTED] wrote:
Sean DiZazzo [EMAIL PROTECTED] wrote:
On windows, this returns the size of the file as it _will be_, not the
size that it currently is. Is this a feature? What is the proper way
to get the current size of the file? I noticed
On Mar 19, 9:27 am, Sean DiZazzo [EMAIL PROTECTED] wrote:
On Mar 18, 2:27 pm, Duncan Booth [EMAIL PROTECTED] wrote:
Sean DiZazzo [EMAIL PROTECTED] wrote:
On windows, this returns the size of the file as it _will be_, not the
size that it currently is. Is this a feature? What is the
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