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not None test in Python [duplicate]

...s not set to None. This idiom has particular uses in the case of declaring keyword functions with default parameters. is tests identity in Python. Because there is one and only one instance of None present in a running Python script/program, is is the optimal test for this. As Johnsyweb points out, ...
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Android Min SDK Version vs. Target SDK Version

... applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same! ...
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Causes of getting a java.lang.VerifyError

... answered Mar 25 '10 at 17:40 Kevin PankoKevin Panko 7,57399 gold badges4646 silver badges5757 bronze badges ...
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Update my github repo which is forked out from another project [duplicate]

I have forked out a Parent: project to Child: this . Now, I want to update my child with parents current updates. Can I do that, if yes how? ...
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Finding element's position relative to the document

... Ry-♦ 192k4444 gold badges392392 silver badges403403 bronze badges answered Apr 8 '11 at 17:41 KeatsKelleherKe...
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Wrapping chained method calls on a separate line in Eclipse for Java

... Complementing Deepak Azad's answer, what you exactly need is the following: Windows: Window → Preferences → Java → Code Style → Formatter → Edit → Line wrapping (tab) Mac OS: ADT → Preferences → Java → Code Style ...
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Disable a Button

I want to disable a button ( UIButton ) on iOS after it is clicked. I am new to developing for iOS but I think the equivalent code on objective - C is this: ...
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Where is svcutil.exe in Windows 7?

...t: where svcutil.exe. On my machine it is in: C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin\SvcUtil.exe share | improve this answer | follow | ...
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Measuring code execution time

I want to know how much time a procedure/function/order takes to finish, for testing purposes. 7 Answers ...
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WPF Application that only has a tray icon

...effect: http://www.hardcodet.net/wpf-notifyicon (blog post) https://bitbucket.org/hardcodet/notifyicon-wpf/src (source code) https://www.nuget.org/packages/Hardcodet.NotifyIcon.Wpf/ (NuGet package) http://visualstudiogallery.msdn.microsoft.com/aacbc77c-4ef6-456f-80b7-1f157c2909f7/ ...