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not None test in Python [duplicate]
...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, this is discussed in PEP 8 under "Programming Recommendations".
As for why this is preferred...
Drag and drop files into WPF
...ing you have one file that you care about, pass it off to whatever
// handling code you have defined.
HandleFileOpen(files[0]);
}
}
Also, don't forget to actually hook up the event in XAML, as well as setting the AllowDrop attribute.
<StackPanel Name="ImagePanel" Drop="ImagePanel_Dro...
Switch case with fallthrough?
... should occur before do_what_you_are_supposed_to_do(), collapsing both "2" and "3" into a single case fails to address this. I'm unsure if editing the question to make this clearer is reasonable, since it's obvious that many people have found this answer helpful.
– Tyson
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json.net has key method?
If my response has key "error" I need to process error and show warning box.
3 Answers
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Is there a sleep function in JavaScript? [duplicate]
... answered Jul 17 '09 at 3:18
AndromedaAndromeda
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How to call Makefile from another Makefile?
...rom another. I have two makefiles, one called /path/to/project/makefile and one called /path/to/project/gtest-1.4.0/make/Makefile . I'm attempting to have the former call the latter. In /path/to/project/makefile, I have
...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...at in layoutSubviews the runtime comes dashing through all the constraints and setting the frames of all the views accordingly.
In other words, the constraints are not magic; they are just a to-do list. layoutSubviews is where the to-do list gets done. And it does it by setting frames.
I can't hel...
How to pass anonymous types as parameters?
... I checked this as correct answer, because of dynamic usage. I real came handy for me. Thanks :)
– Saeed Neamati
Jul 9 '11 at 5:10
1
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What Product Flavor does Android Studio build by default in build.gradle?
We have an Android project that uses the new Gradle build system, and we use Android Studio as a development tool. When there are several product flavors specified in build.gradle , we notice that Android Studio builds the first one specified alphabetically. Is there a way to tell Android Studio to...
javascript: Clear all timeouts?
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It need not start at 1. The HTML5 spec says "Let handle be a user-agent-defined integer that is greater than zero that will identify the timeout to be set by this call." which leaves room for the handle to be any positive integer including non-consecutive and non-small integ...