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Sum a list of numbers in Python
I have a list of numbers such as [1,2,3,4,5...] , and I want to calculate (1+2)/2 and for the second, (2+3)/2 and the third,
(3+4)/2 , and so on. How can I do that?
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Difference between := and = operators in Go
What is the difference between the = and := operators, and what are the use cases for them? They both seem to be for an assignment?
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How to Decrease Image Brightness in CSS
...ticle about it here: http://www.html5rocks.com/en/tutorials/filters/understanding-css/
An another: http://davidwalsh.name/css-filters
And most importantly, the W3C specs: https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html
Note this is something that's only very recently coming into CSS a...
Can I convert long to int?
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Just do (int)myLongValue. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unchecked((int)myLongValue);
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Continuously read from STDOUT of external process in Ruby
I want to run blender from the command line through a ruby script, which will then process the output given by blender line by line to update a progress bar in a GUI. It's not really important that blender is the external process whose stdout I need to read.
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Days between two dates? [duplicate]
...u’ve literally got two date objects, you can subtract one from the other and query the resulting timedelta object for the number of days:
>>> from datetime import date
>>> a = date(2011,11,24)
>>> b = date(2011,11,17)
>>> a-b
datetime.timedelta(7)
>>> ...
MySQL search and replace some text in a field
What MySQL query will do a text search and replace in one particular field in a table?
7 Answers
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Get current date/time in seconds
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@Nick - I think all examples are necessarily speculative and will sound contrived - but I'll take a shot :) Suppose you have data time stamped with unix time, and want to determine it's age. More though I think this is what is most likely meant by 'the current date/time in seconds'...
How to create a directory in Java?
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result = true;
}
catch(SecurityException se){
//handle it
}
if(result) {
System.out.println("DIR created");
}
}
share
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How to create nonexistent subdirectories recursively using Bash?
... script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
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