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  • python interpreter waits for child process to die

    - by Moulik Kallupalam
    Contents of check.py: from multiprocessing import Process import time import sys def slp(): time.sleep(30) f=open("yeah.txt","w") f.close() if __name__=="__main__" : x=Process(target=slp) x.start() sys.exit() In windows 7, from cmd, if I call python check.py, it doesn't immediately exit, but instead waits for 30 seconds. And if I kill cmd, the child dies too- no "yeah.txt" is created. How do I make ensure the child continues to run even if parent is killed and also that the parent doesn't wait for child process to end?

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  • Error trying to transform image < 1 MB in App Engine

    - by ryan
    So I know that App Engine prevents working with images greater than 1 MB in size, but I'm getting a RequestTooLargeError when I call images.resize on an jpg that is 400K on disk. The dimensions of the jpg are 1600 x 1200, so is it that app engine can't handle resizing images over 1 megapixel, even if the image file itself is a compressed format that is smaller than 1 MB?

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  • How to implement hook_theme in drupal 7?

    - by solomon_wzs
    I created a new drupal 7 theme and trying to implement hook_theme at template.php like this: function mytheme_theme($existing, $type, $theme, $path){ return array( 'mytheme_header'=>array( 'template'=>'header', 'path'=>$path.'/templates', 'type'=>'theme', ), ); } then I placed header.tpl.php into templates directory and cleared all caches, and call theme function: theme('mytheme_header', $vars); but it did not work and render page with header.tpl.php. What's wrong with my code?

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  • Can an ActiveRecord before_save filter halt the save without halting the transaction?

    - by Michael Boutros
    Is there any way for a before_save filter to halt the entire save without halting the transaction? What I'm trying to do is have a "sample" version of my model that the user can interact with and save but the changes themselves are never actually saved. The following will halt the transaction and (naturally) return false when I call @model.update_attributes: before_filter :ignore_changes_if_sample def ignore_changes_if_sample if self.sample? return false end end Thanks!

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  • Possible to use Bindings only for the SourceChanged event?

    - by Schneider
    Basically I want to use the WPF Binding framework to "observe" a property in the data context, and when that value changes to call an event handler. I do not actually want to bind it to any target. Sounds simple but from what I can see Binding is too coupled (to the visual tree and various other bits) to be able to use it flexibly. Any thoughts?

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  • Problem with setProgressDrawable

    - by Martin
    I am having problem with setting a new Drawable to my ProgressBar. If I use the setProgressDrawable() inside onCreate() method it works great. But when I try to call the same method inside a Handler post callback it doesn't work and the progressbar disapears. Can someone explain this behaviour? How can I solve this problem?

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  • Get functions called with GDB

    - by Werner
    Hi, I am using GDB to understand a C++ program. I put a break in the middle of the running which turns to be something like: break main.cpp:500 and I would like to see which functions have been called before. I tried "backtrace" but it shows only info about main, as previous calls to previous functions have already finished. My question is how can I get (with GDB or another method) the info about which functions have been called before this point, even if the call has been returned. Thanks

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  • Android Google Analytics dispatch interval

    - by Bear
    In the document, it mentions that we can have a dispatch interval such that page view will be automatically dispatched after x seconds. I have the code like the following tracker.startNewSession("UA-YOUR-ACCOUNT-HERE", 20, this); I sure trackPageView() is called as I can see those pageview are stored into "google_analytics.db" which is the database that google analyitcs used to store non-dispatching pageview. However, it doesn't send to Google Analytics after 20 seconds In log, it keeps reporting scheduling next dispatch when I call trackPageView().

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  • I'm following Qt Tutorials and got a simple question

    - by nzer0
    If I want to create my own class MyWidget which inherits from QWidget Tutorial tells me to write constructor like this... MyWidget::MyWidget(QWidget *parent) : QWidget(parent){....} I'm wondering what is the role of : QWidget(parent) Does it mean explicit call for QWidget's constructor?

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  • How to get Function names

    - by Sandeep P
    I want Function names from the call stack, how do i get Function names from it? as peek data doesn't return address of the stack. It is returned in GETREGS, how do i get my Functions name from these addresses?

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  • Any way to reserve but not commit memory in linux?

    - by Eloff
    Windows has VirtualAlloc, which allows you to reserve a contiguous region of address space, but not actually use any physical memory. Later when you want to use it (or part of it) you call VirtualAlloc again to commit the region of previously reserved pages. This is actually really useful, but I want to eventually port my application to linux - so I don't want to use it if I can't port it later. Does linux have a way to do this?

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  • How can I know when QProcess wants to read input?

    - by mpcabd
    I'm implementing a compiler in my Compilers class, I'm using Qt & C++. After I have generated the machine code from the source code, I'm executing the virtual machine that will execute the call. I'm facing a problem here, I'm using readyRead() signal to get output from the virtual machine, but how can I know that the virtual machine wants to read data from the user? I wanna show the user an input dialog each time the machine asks for input.

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  • command line arg?

    - by kaushik
    This is a module named XYZ. def func(x) ..... ..... if __name__=="__main__": print func(sys.argv[1]) Now I have imported this module in another code and want to use the func. How can i use it? import XYZ After this, where to give the argument, and syntax on how to call it, please?

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  • php redirect and querystring

    - by kusanagi
    i have script <?php $to = $_GET["to"]; header("Location: $to"); ?> if i call script such out.php?to=http://site.ru/page.php?param1=1&param2=2 in param $to be only http://site.ru/page.php?param1=1& how to fix? i want that $to = http://site.ru/page.php?param1=1&param2=2

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  • Recursive insert-method for a linked list

    - by user3726477
    I'm learning C# and I've made a recursive insert-method for a linked list: public static int recursiveInsert(ref int value, ref MyLinkedList list) { if (list == null) return new MyLinkedList(value, null); else { list.next = recursiveInsert(ref int value, ref list.next); return list; } } How would you modify this method to make the recursive call look like this: recursiveInsert(value, ref list.next) instead of: list.next = recursiveInsert(ref int value, ref list.next);

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  • how to handle redirect from http response in c# code ?

    - by dotnetcoder
    I have a http request call that return a url . If I run this url in IE it returns a page that redirects to a another page and downloads the excel file. How can I abstract this whole process in a c# Api tha will deal with http request + response + redirect + file_downlaod in a method and evetually return the file or the file stream. thanks for the help.

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  • call_user_function_array() and __construct

    - by John
    I'm working on a simple framework, and I'm having a slight problem. I'd like to use call_user_function_array() to pass parameters to a function. That's fine, except the function I want to pass it to is __construct. I can't create an instance of an object with cufa(), and by instantiating an object, and then using cufa to call that instance's __construct(), I run into problems with a broken class because I'm calling the constructor twice (and one time it's called wrong.)

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  • Git push from post-receive

    - by meka
    I have two servers, let's call them first and second. First one is where the real development is done, and second one should be the replica. What I would like to do is put "git push" in post-receive, but there is one problem. Post-receive is executed as the user doing git push to first server, so I can't chmod 600 ssh key with no pass. What is the best practice for this? Thanx!

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