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How do I diff the same file between two different commits on the same branch?

...fferent files in two different revisions, like this: git diff <revision_1>:<file_1> <revision_2>:<file_2> share | improve this answer | follow ...
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Unzip a file with php

...pen('file.zip'); if ($res === TRUE) { $zip->extractTo('/myzips/extract_path/'); $zip->close(); echo 'woot!'; } else { echo 'doh!'; } Also, as others have commented, $HTTP_GET_VARS has been deprecated since version 4.1 ... which was a reeeeeally long time ago. Don't use it. Use the $_...
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C++ equivalent of java's instanceof

... Try using: if(NewType* v = dynamic_cast<NewType*>(old)) { // old was safely casted to NewType v->doSomething(); } This requires your compiler to have rtti support enabled. EDIT: I've had some good comments on this answer! Every time you nee...
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?

...ing Qt and noticed that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro? ...
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“Large data” work flows using pandas

...fields to a specific group, and defines # what you want to have as data_columns. # you might want to create a nice class wrapping this # (as you will want to have this map and its inversion) group_map = dict( A = dict(fields = ['field_1','field_2',.....], dc = ['field_1',....,'field_...
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Sending multipart/formdata with jQuery.ajax

...how is it possible to send this Data to the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when using the file-input. ...
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Most Pythonic way to provide global configuration variables in config.py? [closed]

...ot", "pass": "secret", "tables": { "users": "tb_users" } # etc } } You'd access the values as follows: config["mysql"]["tables"]["users"] If you are willing to sacrifice the potential to compute expressions inside your config tree, you could use...
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How can I rename a field for all documents in MongoDB?

...ormer way: remap = function (x) { if (x.additional){ db.foo.update({_id:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}}); } } db.foo.find().forEach(remap); In MongoDB 3.2 you can also use db.students.updateMany( {}, { $rename: { "oldname": "newname" } } ) ...
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Can PostgreSQL index array columns?

...0}'); INSERT INTO "Test" VALUES ('{10, 20, 30}'); CREATE INDEX idx_test on "Test" USING GIN ("Column1"); -- To enforce index usage because we have only 2 records for this test... SET enable_seqscan TO off; EXPLAIN ANALYZE SELECT * FROM "Test" WHERE "Column1" @> ARRAY[2...
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Python error “ImportError: No module named”

... your comments to orip's post, I guess this is what happened: You edited __init__.py on windows. The windows editor added something non-printing, perhaps a carriage-return (end-of-line in Windows is CR/LF; in unix it is LF only), or perhaps a CTRL-Z (windows end-of-file). You used WinSCP to copy t...