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Python multiprocessing PicklingError: Can't pickle

...the one you posted: Exception in thread Thread-2: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 505, in run self.__target(*self.__args, **self.__kwargs) File "/usr/lib/p...
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How do I get an animated gif to work in WPF?

...und so far: https://github.com/XamlAnimatedGif/WpfAnimatedGif You can install it with NuGet PM> Install-Package WpfAnimatedGif and to use it, at a new namespace to the Window where you want to add the gif image and use it as below <Window x:Class="MainWindow" xmlns="http://schemas.micr...
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?

...hanged his example to work with Django 1.3, using get_readonly_fields. Usually you should declare something like this in app/admin.py: class ItemAdmin(admin.ModelAdmin): ... readonly_fields = ('url',) I've adapted in this way: # In the admin.py file class ItemAdmin(admin.ModelAdmin): ...
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How to calculate the difference between two dates using PHP?

...ferred way of doing this is like described by jurka below. My code is generally only recommended if you don't have PHP 5.3 or better. Several people in the comments have pointed out that the code above is only an approximation. I still believe that for most purposes that's fine, since the usage of...
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Proper way to return JSON using node or Express

...n do this by changing the options instead. 'json replacer' JSON replacer callback, null by default 'json spaces' JSON response spaces for formatting, defaults to 2 in development, 0 in production Not actually recommended to set to 40 app.set('json spaces', 40); Then you could just respond with so...
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How do you build a Singleton in Dart?

... There's the weird syntax Singleton._internal(); that looks like a method call when it's really a constructor definition. There's the _internal name. And there's the nifty language design point that Dart lets you start out (dart out?) using an ordinary constructor and then, if needed, change it to a...
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XmlSerializer: remove unnecessary xsi and xsd namespaces

... Since Dave asked for me to repeat my answer to Omitting all xsi and xsd namespaces when serializing an object in .NET, I have updated this post and repeated my answer here from the afore-mentioned link. The example used in this answer is the same example used for the other questio...
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How to build for armv6 and armv7 architectures with iOS 5

... had to make some modifications so it would work correctly under iOS5, but all those changes were done with iOS4-friendly code changes. We also added some iOS5-specific capabilities in a manner that allows the app to run without crashing under iOS4. Specifically, we tested for iOS5 capabilities bef...
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Disable output buffering

...stdout with some other stream like wrapper which does a flush after every call. class Unbuffered(object): def __init__(self, stream): self.stream = stream def write(self, data): self.stream.write(data) self.stream.flush() def writelines(self, datas): self.stream....
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PHP Get name of current directory

... libs/common.php That way when common.php is require'd in main.php, the call of require_once in common.php will correctly includes editor.php in images/editor.php instead of trying to look in current directory where main.php is run. ...