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How do I flag a method as deprecated in Objective-C 2.0?

I'm part of a team developing a fairly large iPad app and there are many different classes we've created as a result. The trouble is some of the methods are now pretty much obsolete and I don't want simply remove them yet as I know some parts of the overall system use the methods... but there are b...
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How do I read an entire file into a std::string in C++?

How do I read a file into a std::string , i.e., read the whole file at once? 15 Answers ...
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Why is a “GRANT USAGE” created the first time I grant a user privileges?

I'm new to the admin side of DBMS and was setting up a new database tonight (using MySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like ...
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Label encoding across multiple columns in scikit-learn

I'm trying to use scikit-learn's LabelEncoder to encode a pandas DataFrame of string labels. As the dataframe has many (50+) columns, I want to avoid creating a LabelEncoder object for each column; I'd rather just have one big LabelEncoder objects that works across all my columns of data. ...
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Java HashMap performance optimization / alternative

I want to create a large HashMap but the put() performance is not good enough. Any ideas? 25 Answers ...
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How to calculate the number of days between two dates? [duplicate]

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cannot convert data (type interface {}) to type string: need type assertion

I am pretty new to go and I was playing with this notify package. 4 Answers 4 ...
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Embedding Python in an iPhone app

So it's a new millennium; Apple has waved their hand; it's now legal to include a Python interpreter in an iPhone (App Store) app. ...
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Does Python have a string 'contains' substring method?

I'm looking for a string.contains or string.indexof method in Python. 10 Answers 1...
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Nested attributes unpermitted parameters

I have a Bill object, which has many Due objects. The Due object also belongs to a Person . I want a form that can create the Bill and its children Dues all in one page. I am trying to create a form using nested attributes, similar to ones in this Railscast . ...