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Simpler way to create dictionary of separate variables?
I would like to be able to get the name of a variable as a string but I don't know if Python has that much introspection capabilities. Something like:
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
A very frequently asked question here is how to do an upsert, which is what MySQL calls INSERT ... ON DUPLICATE UPDATE and the standard supports as part of the MERGE operation.
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Using TortoiseSVN how do I merge changes from the trunk to a branch and vice versa?
...ree Version Control with Subversion book. I think that I understand how to use the Subversion command line client to perform the actions that I need most often, which are:
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How to avoid having class data shared among instances?
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An added clarification: if you were to reassign the list property in one of the instances, it would not affect the others. So if you did something like x.list = [], you could then change it and not affect any others. The problem you face is that x.list and y.li...
Encoding an image file with base64
I want to encode an image into a string using the base64 module. I've ran into a problem though. How do I specify the image I want to be encoded? I tried using the directory to the image, but that simply leads to the directory being encoded. I want the actual image file to be encoded.
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bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
I am new to Ruby and trying to wrap my head around following concepts: bundler vs RVM vs gems vs RubyGems vs gemsets vs system rub and I'm confused.
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Status bar won't disappear
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Try adding the following method to your app's root view controller:
- (BOOL)prefersStatusBarHidden
{
return YES;
}
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Why would one omit the close tag?
I keep reading it is poor practice to use the PHP close tag ?> at the end of the file. The header problem seems irrelevant in the following context (and this is the only good argument so far):
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Python idiom to return first item or None
I'm sure there's a simpler way of doing this that's just not occurring to me.
23 Answers
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What is the difference between C, C99, ANSI C and GNU C?
... and C99. What does C mean here? Is it C89? Check the languages at the bottom of this submit . It contains both C and C99.
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