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Python != operation vs “is not”

... == is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.) is is an identity test. It checks whether the right hand side and the left hand side are the very same object. No methodcalls ...
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When should I use File.separator and when File.pathSeparator?

In the File class there are two strings, separator and pathSeparator . 3 Answers ...
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How to prune local tracking branches that do not exist on remote anymore

...es. This line should do the trick (requires bash or zsh, won't work with standard Bourne shell): git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}' | xargs git branch -d This string gets the list of remote branches and passes it into egrep...
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How to resolve “Error: bad index – Fatal: index file corrupt” when using Git

After git init , I added and committed a few files, made some changes, added and committed. Set up the git daemon (running under Cygwin on WinXP) and cloned the repository once. Now, I get this error with the cloned repository: ...
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Order of member constructor and destructor calls

Oh C++ gurus, I seek thy wisdom. Speak standardese to me and tell my if C++ guarantees that the following program: 4 Answer...
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How do I make Git ignore file mode (chmod) changes?

...bit on. git-clone(1) or git-init(1) probe the filesystem to see if it handles the executable bit correctly and this variable is automatically set as necessary. A repository, however, may be on a filesystem that handles the filemode correctly, and this variable is set to true wh...
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Find MongoDB records where array field is not empty

... To me that's the correct approach, since it makes sure the array exists and is not empty. – LeandroCR Mar 19 '15 at 14:34 ...
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Easy way to write contents of a Java InputStream to an OutputStream

... but I suspect I'm just missing something which would make my life easier (and the code clearer). 23 Answers ...
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What is the difference between getFields and getDeclaredFields in Java reflection

I'm a little confused about the difference between the getFields method and the getDeclaredFields method when using Java reflection. ...
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Viewing complete strings while debugging in Eclipse

While debugging Java code, Strings in the views "Variables" and "Expressions" show up only till a certain length, after which Eclipse shows "..." ...