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How to manage local vs production settings in Django?
What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is...
Determine if variable is defined in Python [duplicate]
How do you know whether a variable has been set at a particular place in the code at runtime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or...
Exporting a function in shell
Please tell me how to export a function in parent shell (bash, sh or ksh) so that the function will be available to all the child process launced from the parent process?
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Why .NET String is immutable? [duplicate]
As we all know, String is immutable. What are the reasons for String being immutable and the introduction of StringBuilder class as mutable?
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Does use of final keyword in Java improve the performance?
In Java we see lots of places where the final keyword can be used but its use is uncommon.
13 Answers
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Are Exceptions in C++ really slow
I was watching Systematic Error Handling in C++—Andrei Alexandrescu he claims that Exceptions in C++ are very very slow.
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What does Maven do, in theory and in practice? When is it worth to use it? [closed]
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What it does
Maven is a "build management tool", it is for defining how your .java files get compiled to .class, packaged into .jar (or .war or .ear) files, (pre/post)processed with tools, managing your CLASSPATH, and all others sorts of tasks that are required to build your project. It...
What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
In the following method definitions, what does the * and ** do for param2 ?
22 Answers
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When to use in vs ref vs out
...ne asked me the other day when they should use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothetical ...
How to read a (static) file from inside a Python package?
Could you tell me how can I read a file that is inside my Python package?
8 Answers
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