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correct way to define class variables in Python [duplicate]
...hey are just two different kinds of class elements:
Elements outside the __init__ method are static elements; they belong to the class.
Elements inside the __init__ method are elements of the object (self); they don't belong to the class.
You'll see it more clearly with some code:
class MyClass...
What really happens in a try { return x; } finally { x = null; } statement?
I saw this tip in another question and was wondering if someone could explain to me how on earth this works?
5 Answers
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UIBarButtonItem with custom image and no border
...ustom category: I have to create the header file with those declarations, and the implementation file, where I put the code you're refering ? thanks
– mongeta
Apr 21 '10 at 8:59
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Convert a row of a data frame to vector
...ate a vector out of a row of a data frame. But I don't want to have to row and column names. I tried several things... but had no luck.
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Stop “developer tools access needs to take control of another process for debugging to continue” ale
I recently upgraded to 10.7.3, and when I try to debug my iOS project in the simulator for the first time after logging in, I'm prompted with the following two alerts:
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How to set child process' environment variable in Makefile
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I have GNU make 3.81, and all: <\n\t>export PROJ_ROOT=$(CURDIR)<\n\t>echo $(PROJ_ROOT)<\n> outputs the correct expansion for the first row, but only echo for the second one. PROJ_ROOT is not set after running make. Spaces around ...
RegEx for Javascript to allow only alphanumeric
...y only works if the string is alphanumeric, meaning contains both a letter and a number. I just want one what would allow either and not require both.
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Django DB Settings 'Improperly Configured' Error
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You can't just fire up Python and check things, Django doesn't know what project you want to work on. You have to do one of these things:
Use python manage.py shell
Use django-admin.py shell --settings=mysite.settings (or whatever settings module you us...
How do I copy items from list to list without foreach?
...nt32> copy = new List<Int32>(original);
or if you're using C# 3 and .NET 3.5, with Linq, you can do this:
List<Int32> copy = original.ToList();
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Difference between fprintf, printf and sprintf?
...lain in simple English about the differences between printf , fprintf , and sprintf with examples?
8 Answers
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