temporary-files

I have created a temporary file. Added some data to the file created. Saved it and then trying to delete it. But I am getting WindowsError . I have closed the file after editing it. How do I check which other process is accessing the file. C:\Documents and Settings\Administrator>python Python 2.6.1 (r261:67517, Dec 4 2008, 16:51:00) [MSC v.1500 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import tempfile >>> __, filename = tempfile.mkstemp() >>> print filename c:\docume~1\admini~1\locals~1\temp\tmpm5clkb >>> fptr = open(filename, "wb") >>>

My environment is Python 3.7.2, running on Windows 10. I'm working on a directory-selection widget, and I'm looking for the cleanest+surest method to test whether the selected directory path allows write privilege. Previously I'd been opening a named file by the usual open() method, writing a few bytes to it, then deleting it -- putting the whole thing in a try-except block. This was OK but it ran the risk of leaving behind an unwanted file. Recently I came across the documentation for tempfile.TemporaryFile() , and this seemed cleaner way to get the same result, with no risk of leaving junk

I'm building an blog system, which allow user add image to their blog. when user add image, the image will be upload automatically, this happened before the blog is posted, so how should I handle the uploaded image, these image is kind of like temporary image, because if the user post the blog, these images will have an foreign key to this blog , and saved into some folder,but if the user discard the blog , these temporary images should be deleted. the problem is how to get the firstly uploaded images,when the blog is actually posted? where should I store these temporary images? and how can I

How can I create a directory inside NSTemporaryDirectory ? I tried something like: [NSTemporaryDirectory() stringByAppendingPathComponent:@"/myTmp/"]; followed by the file name, but it didn't work. Use NSFileManager to create the directory for you: [[NSFileManager defaultManager] createDirectoryAtPath:[NSTemporaryDirectory() stringByAppendingPathComponent:@"/myTmp/"] withIntermediateDirectories:YES attributes:nil error:nil]; 来源： https://stackoverflow.com/questions/6847788/create-directory-inside-nstemporarydirectory

Basically, I'm wondering if there is a best practice when it comes to the following issue of downloading files, not just for temporary use, but eventually to move them to the application folder. I'm faced with some options: //Option 1 - Random file String tempfile = Path.GetTempFileName(); WriteData(tempfile); File.Move(tempfile, Path.Combine(Environment.CurrentDirectory, filename); //Option 2 - Temp Path + Random file name String tempfile = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()); WriteData(tempfile); File.Move(tempfile, Path.Combine(Environment.CurrentDirectory, filename);

I'm using Java 6. Is it possible that two threads calling createTempFile (of the class java.io.File) get the same temp file? Best way to get your answer is to look at the source code. At first there isn't any synchronization in createTempFile, but to generate the temp file name, it is using SecureRandom which is ThreadSafe. Then unless you are really unlucky, your file will always get a different name. On top of that, createTempFile implementation is looping, generating new file name, until the file has been created. The file creation of course is delegated to the native file system operation

I am writing a Python script in which I write output to a temporary file and then move that file to its final destination once it is finished and closed. When the script finishes, I want the output file to have the same permissions as if it had been created normally through open(filename,"w") . As it is, the file will have the restrictive set of permissions used by the tempfile module for temp files. Is there a way for me to figure out what the "default" file permissions for the output file would be if I created it in place, so that I can apply them to the temp file before moving it? For the

When does iOS clean the local app ./tmp directory? Note that this is not a dupe of this question . I'm asking about the app specific temporary folder, not the system wide one. You can use iExplorer to have a look at ./tmp directories on non-jailbroken phones. (Note: I'm asking this out of curiosity only. I kind of suspect that these never get deleted unless you restore your phone from a backup or reinstall that particular app. But obviously you cannot count on that for semi-permanently storing cached files. ) According to the documentation , it could be any time, if the app is not executing: