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In Python how should I test if a variable is None, True or False

... answered Jan 7 '10 at 13:46 PaulMcGPaulMcG 53.6k1111 gold badges8080 silver badges119119 bronze badges ...
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Why `null >= 0 && null

... Michael Liquori 37944 silver badges1313 bronze badges answered May 26 '10 at 6:39 Christian C. SalvadóChristian C. Sa...
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How to cancel a pull request on github?

... | edited Aug 31 at 7:00 Kai Noack 9,99977 gold badges8787 silver badges152152 bronze badges answe...
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“new” keyword in Scala

...a proxy for the constructor: class Foo { } object Foo { def apply() = 7 } // These do different things > println(new Foo) test@5c79cc94 > println(Foo()) 7 And, since you mentioned Java classes: yes -- Java classes rarely have companion objects with an apply method, so you must use new ...
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How to write one new line in Bitbucket markdown?

... It's possible, as addressed in Issue #7396: When you do want to insert a <br /> break tag using Markdown, you end a line with two or more spaces, then type return or Enter. sha...
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Rails hidden field undefined method 'merge' error

... 417 You should do: <%= f.hidden_field :service, :value => "test" %> hidden_field expects...
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In Vim, how do I apply a macro to a set of lines?

... Judge MaygardenJudge Maygarden 24.5k88 gold badges7474 silver badges9494 bronze badges 1 ...
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Button in a column, getting the row from which it came on the Click event handler

... 7 The ideal way to do this kind of stuff is using commands (Basically MVVM pattern) you can create a command in your Data Object(ViewModel) an...
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How can I use getSystemService in a non-activity class (LocationManager)?

... Krzysiek 4,76233 gold badges2929 silver badges3535 bronze badges answered Feb 2 '11 at 4:14 Labeeb PanampullanLa...
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Get “Internal error in the expression evaluator” on “Add watch” function when trying to debug WCF se

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