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Set environment variables on Mac OS X Lion

... First, one thing to recognize about OS X is that it is built on Unix. This is where the .bash_profile comes in. When you start the Terminal app in OS X you get a bash shell by default. The bash shell comes from Unix and when it loads it runs the .bash_profile scri...
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How do I enumerate through a JObject?

...gt;>. So, you can iterate over it simply using a foreach: foreach (var x in obj) { string name = x.Key; JToken value = x.Value; … } share | improve this answer | ...
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence

...צקלה", ensure_ascii=False).encode('utf8') >>> json_string b'"\xd7\x91\xd7\xa8\xd7\x99 \xd7\xa6\xd7\xa7\xd7\x9c\xd7\x94"' >>> print(json_string.decode()) "ברי צקלה" If you are writing to a file, just use json.dump() and leave it to the file object to encode: with open(...
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How to place and center text in an SVG rectangle

... An easy solution to center text horizontally and vertically in SVG: Set the position of the text to the absolute center of the element in which you want to center it: If it's the parent, you could just do x="50%" y ="50%". If it's another element, x ...
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In Python, what is the difference between “.append()” and “+= []”?

... import dis >>> dis.dis(compile("s = []; s.append('spam')", '', 'exec')) 1 0 BUILD_LIST 0 3 STORE_NAME 0 (s) 6 LOAD_NAME 0 (s) 9 LOAD_ATTR 1 (append) 12 LOAD_CONST ...
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Why is it impossible to override a getter-only property and add a setter? [closed]

... Because the writer of Baseclass has explicitly declared that Bar has to be a read-only property. It doesn't make sense for derivations to break this contract and make it read-write. I'm with Microsoft on this one. Let's say I'm a new programmer who has been tol...
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How can I use pointers in Java?

...can be created with pointers and that this can be done by the few who are experts in java. Is it true? 14 Answers ...
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How to determine a user's IP address in node

...determine the IP address of a given request from within a controller? For example (in express): 19 Answers ...
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How to make an immutable object in Python?

...amedtuple internally inside the class instead of instantiating the object externally? I'm very new to python but the advantage to your other answer is that I can have a class hide the details and also have the power of things like optional parameters. If I only look at this answer it seems like I ne...
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Convert RGB to RGBA over white

I have a hex color, e.g. #F4F8FB (or rgb(244, 248, 251) ) that I want converted into an as-transparent-as-possible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so. ...