You’ve got a scope problem; the file tmp only exists within the scope of the with statement which creates it. Additionally, you’ll need to use a NamedTemporaryFile if you want to access the file later outside of the initial with (this gives the OS the ability to access the file). Also, I’m not sure why … Read more
You can use os.write(tup[0], “foo\n”) to write to the handle. If you want to open the handle for writing you need to add the “w” mode f = os.fdopen(tup[0], “w”) f.write(“foo”)
Since nobody else appears to be interested in leaving this information out in the open… tempfile does expose a function, mkdtemp(), which can trivialize this problem: try: temp_dir = mkdtemp() temp_file = make_a_file_in_a_dir(temp_dir) do_your_subprocess_stuff(temp_file) remove_your_temp_file(temp_file) finally: os.rmdir(temp_dir) I leave the implementation of the intermediate functions up to the reader, as one might wish to do … Read more
This could be one of two reasons: Firstly, by default the temporary file is deleted as soon as it is closed. To fix this use: tf = tempfile.NamedTemporaryFile(delete=False) and then delete the file manually once you’ve finished viewing it in the other application. Alternatively, it could be that because the file is still open in … Read more
Here’s a version without any temp files and the like (see here): def serve_pil_image(pil_img): img_io = StringIO() pil_img.save(img_io, ‘JPEG’, quality=70) img_io.seek(0) return send_file(img_io, mimetype=”image/jpeg”) To use in your code simply do @app.route(‘some/route/’) def serve_img(): img = Image.new(‘RGB’, …) return serve_pil_image(img)
Nothing is guaranteed if the process is killed prematurely, however, I use “using” to do this.. using System; using System.IO; sealed class TempFile : IDisposable { string path; public TempFile() : this(System.IO.Path.GetTempFileName()) { } public TempFile(string path) { if (string.IsNullOrEmpty(path)) throw new ArgumentNullException(“path”); this.path = path; } public string Path { get { if (path … Read more
“That name can be retrieved from the name member of the file object.” means that you can get the name of the temporary file created like so: In [4]: import tempfile In [5]: tf = tempfile.NamedTemporaryFile() In [6]: tf.name # retrieve the name of the temp file just created Out[6]: ‘c:\\blabla\\locals~1\\temp\\tmptecp3i’ Note: By default the … Read more
DeleteIntent: DeleteIntent is a PendingIntent object that can be associated with a notification and gets fired when the notification gets deleted, ether by : User specific action User Delete all the notifications. You can set the Pending Intent to a broadcast Receiver and then perform any action you want. Intent intent = new Intent(this, MyBroadcastReceiver.class); … Read more
The file won’t be deleted automatically, from the JavaDoc: This method provides only part of a temporary-file facility. To arrange for a file created by this method to be deleted automatically, use the deleteOnExit() method. So you have to explicitly call deleteOnExit(): Requests that the file or directory denoted by this abstract pathname be deleted … Read more
I usually create a directory in which to place all my temporary files, and then immediately after, create an EXIT handler to clean up this directory when the script exits. MYTMPDIR=”$(mktemp -d)” trap ‘rm -rf — “$MYTMPDIR”‘ EXIT If you put all your temporary files under $MYTMPDIR, then they will all be deleted when your … Read more