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Is an empty href valid?
One of our web developers uses the following html as a placeholder for styling a drop down list.
10 Answers
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Where do “pure virtual function call” crashes come from?
I sometimes notice programs that crash on my computer with the error: "pure virtual function call".
8 Answers
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Using python “with” statement with try-except block
...ry:
line = f.readline()
finally:
f.close()
except IOError:
<whatever>
As you can see, the with statement can make things less error prone. In newer versions of Python (2.7, 3.1), you can also combine multiple expressions in one with statement. For example:
with open(...
Python Requests library redirect new url
...ough the Python Requests documentation but I cannot see any functionality for what I am trying to achieve.
5 Answers
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Command line CSV viewer? [closed]
Anyone know of a command-line CSV viewer for Linux/OS X? I'm thinking of something like less but that spaces out the columns in a more readable way. (I'd be fine with opening it with OpenOffice Calc or Excel, but that's way too overpowered for just looking at the data like I need to.) Having ...
Kill some processes by .exe file name
How can I kill some active processes by searching for their .exe filenames in C# .NET or C++?
6 Answers
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Why does substring slicing with index out of range work?
Why doesn't 'example'[999:9999] result in error? Since 'example'[9] does, what is the motivation behind it?
3 Answers
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Replacing some characters in a string with another character
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echo "$string" | tr xyz _
would replace each occurrence of x, y, or z with _, giving A__BC___DEF__LMN in your example.
echo "$string" | sed -r 's/[xyz]+/_/g'
would replace repeating occurrences of x, y, or z with a single _, giving A_BC_DEF_LMN in your example.
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When is del useful in python?
I can't really think of any reason why python needs the del keyword (and most languages seem to not have a similar keyword). For instance, rather than deleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added.
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VIM Disable Automatic Newline At End Of File
So I work in a PHP shop, and we all use different editors, and we all have to work on windows. I use vim, and everyone in the shop keeps complaining that whenever I edit a file there is a newline at the bottom. I've searched around and found that this is a documented behavior of vi & vim... but I w...