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What does “error: option --single-version-externally-managed not recognized” indicate?
...including PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has changed.
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How do I fix the Visual Studio compile error, “mismatch between processor architecture”?
...ion in Visual Studio 2010, but I've done some research and still can't quite figure this issue out. I have a Visual Studio solution with a C++ DLL referencing the C# DLL. The C# DLL references a few other DLLs, some within my project and some external. When I try to compile the C++ DLL, I get this...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
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[[ has fewer surprises and is generally safer to use. But it is not portable - POSIX doesn't specify what it does and only some shells support it (beside bash, I heard ksh supports it too). For example, you can do
[[ -e $b ]]
to test whether a file exists. But with [, you have t...
StringBuilder vs String concatenation in toString() in Java
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Version 1 is preferable because it is shorter and the compiler will in fact turn it into version 2 - no performance difference whatsoever.
More importantly given we have only 3
properties it might not make a
difference, but at what point do you
sw...
Is it possible to change the location of packages for NuGet?
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It's now possible to control which folder the packages are installed into.
http://nuget.codeplex.com/workitem/215
Edit:
See Phil Haack's comment on Dec 10 2010 at 11:45 PM (in the work item/the link above). The support is ...
JavaScript math, round to two decimal places [duplicate]
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NOTE - See Edit 4 if 3 digit precision is important
var discount = (price / listprice).toFixed(2);
toFixed will round up or down for you depending on the values beyond 2 decimals.
Example: http://jsfiddle.net/calder12/tv9HY/
Documentatio...
Checking for empty arrays: count vs empty
...nswered Feb 7 '10 at 6:21
prodigitalsonprodigitalson
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Why can't I use a list as a dict key in python?
I'm a bit confused about what can/can't be used as a key for a python dict.
11 Answers
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Can you make valid Makefiles without tab characters?
... have a tab character preceding the the content of each command line, or it throws a syntax error.
10 Answers
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Is Integer Immutable
...ted object, just as your Integer is. So the value of a did not mutate, but it was replaced with a completely new object, i.e. new Integer(6).
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