temporary-files

StringIO has the following notes in its code: Notes: - Using a real file is often faster (but less convenient). - There's also a much faster implementation in C, called cStringIO, but it's not subclassable. The "real file is often faster" line seemed really odd to me: how could writing to disk beat writing to memory? I tried profiling these different cases and got results that contradict these docs, as well as the answer to this question . This other question does explain why cStringIO is slower under some circumstances, though I'm not doing any concatenating here. The test writes a given

(I'm using Python 2.6 and nose .) I'm writing tests for my Python app. I want one test to open a new file, close it, and then delete it. Naturally, I prefer that this will happen inside a temporary directory, because I don't want to trash the user's filesystem. And, it needs to be cross-OS. How do I do it? See the tempfile module in the standard library -- should be all you need. FWIW using py.test you can write: def test_function(tmpdir): # tmpdir is a unique-per-test-function invocation temporary directory Each test function using the "tmpdir" function argument will get a clean empty

Closed . This question is opinion-based. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it can be answered with facts and citations by editing this post . Closed 2 years ago . I have to store an image for a few minutes after user upload it until user confirm and i store in database So i'm wondering of creating a temporary file and use it to display preview. But I have to be sure that the file will be deleted after some time if user not interact anymore I found this article about temporary files and how delete them automatically https:/

I have a function in a C# MVC application that creates a temporary directory and a temporary file, then opens the file using FileStream, returns the FileStream to a calling function, and then needs to delete the temporary files. However, I do not know how to delete the temp directory and file because it always errors out saying "the process cannot access the file because it is being used by another process." This is what I tried, but the FileStream is still using the temp file in the finally block. How can I return the FileStream and delete the temporary files? public FileStream

I want to create a temporary file in POSIX shell ( /bin/sh ). I found out that mktemp(1) doens't exist on my AIX box, and according to How portable is mktemp(1)? , it isn't that portable and/or secure anyway. So, what should I use instead ? billhill00 Why not use /dev/random ? It could be neater with perl but od and awk will do, something like: tempfile=XXX-$(od -N4 -tu /dev/random | awk 'NR==1 {print $2} {}') ghoti You didn't exactly define "secure", but one element of it is probably to clean up after yourself. trap "rm -f \"$tmpfile\"" 0 1 2 3 15 You can probably man 3 signal to see if there

This question already has answers here : How to get a temporary file path? (5 answers) I tried this: $temp = tmpfile(); file_put_contents($temp,file_get_contents("$path/$filename")); But I get this error: "Warning: file_put_contents() expects parameter 1 to be string," If I try: echo file_get_contents("$path/$filename"); It return to screen the file content as a long string. Where am I wrong? tmpfile() creates a temporary file with a unique name in read-write (w+) mode and returns a file handle to use with fwrite for example. $temp = tmpfile(); fwrite($temp, file_get_contents("$path/$filename"