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Remove ActiveRecord in Rails 3

...app I have just started work on in Rails 3 beta, both to get a feel for it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way: ...
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Clear terminal in Python [duplicate]

Does any standard "comes with batteries" method exist to clear the terminal screen from a Python script, or do I have to go curses (the libraries, not the words)? ...
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For a boolean field, what is the naming convention for its getter/setter?

... boolean filed named hasCustomName, Now what should i name for it's getter and setter methods? Is setHasCustomName[setter] and hasCustomName[getter] good? – Hadi Jul 29 '18 at 8:50 ...
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How to insert a character in a string at a certain position?

...34.50 ). Therefore, I need a function that will take an int as parameter and return the properly formatted String with a decimal point 2 digits from the end. ...
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Common use-cases for pickle in Python

I've looked at the pickle documentation, but I don't understand where pickle is useful. 9 Answers ...
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Split a String into an array in Swift?

... that String no longer adopts the SequenceType or CollectionType protocols and you must instead use the .characters property to access a CharacterView type representation of a String instance. (Note: CharacterView does adopt SequenceType and CollectionType protocols). let fullName = "First Last" le...
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How to set timeout on python's socket recv method?

...the socket no non-blocking? I don't think that matters to the select call (and it blocks until a descriptor can be read or the timeout expires in this case) and the recv() won't block if the select is satisfied. I tried it using recvfrom() and it seems to work correctly without setblocking(0). ...
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The request was aborted: Could not create SSL/TLS secure channel

...12; // Use SecurityProtocolType.Ssl3 if needed for compatibility reasons And now, it works perfectly. ADDENDUM As mentioned by Robin French; if you are getting this problem while configuring PayPal, please note that they won't support SSL3 starting by December, 3rd 2018. You'll need to use TLS...
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Node.js check if file exists

...h.existsSync('foo.txt')) { // do something } For Node.js v0.12.x and higher Both path.exists and fs.exists have been deprecated *Edit: Changed: else if(err.code == 'ENOENT') to: else if(err.code === 'ENOENT') Linter complains about the double equals not being the triple equals. Usin...
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How do I remove duplicate items from an array in Perl?

..., but if you were to add sorting in this function then it would trump $::a and $::b, wouldn't it? – vol7ron Feb 21 '12 at 16:45 5 ...