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How do I pipe a subprocess call to a text file?
... write the output to a file you can use the stdout-argument of subprocess.call.
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The thi...
Which kind of pointer do I use when?
Ok, so the last time I wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all ...
What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
... Internet access. I cannot run Jekyll server without Internet. Is it a small bug?
2 Answers
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Using isKindOfClass with Swift
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Another approach using the new Swift 2 syntax is to use guard and nest it all in one conditional.
guard let touch = object.AnyObject() as? UITouch, let picker = touch.view as? UIPickerView else {
return //Do Nothing
}
//Do something with picker
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Multiple levels of 'collection.defaultdict' in Python
...ng specific that you need help with? When d[new_key] is accessed, it will call the lambda which will create a new defaultdict(int). And when d[existing_key][new_key2] is accessed, a new int will be created.
– interjay
Oct 11 '13 at 12:53
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vertical alignment of text element in SVG
...aligned with the corresponding baseline of the parent. For example,
this allows alphabetic baselines in Roman text to stay aligned across
font size changes. It defaults to the baseline with the same name as
the computed value of the alignment-baseline property. That is, the
position of "ideo...
What regex will match every character except comma ',' or semi-colon ';'?
... And the question doesn't specify whether adjacent separators are allowed, so the trailing '+' is slightly dubious.
– Jonathan Leffler
Sep 11 '09 at 6:26
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Most underused data visualization [closed]
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I really agree with the other posters: Tufte's books are fantastic and well worth reading.
First, I would point you to a very nice tutorial on ggplot2 and ggobi from "Looking at Data" earlier this year. Beyond that I would ju...
What are the security risks of setting Access-Control-Allow-Origin?
I recently had to set Access-Control-Allow-Origin to * in order to be able to make cross-subdomain ajax calls.
Now I can't help but feel that I'm putting my environment to security risks.
Please help me if I'm doing it wrong.
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Looking for files NOT owned by someone
...s -I{} -P3 -- ${cmdhere} {} can have ${cmdhere} operate on each file in parallel. cmdhere ::= standard unix utils; standard unix utils ::= chmod, chown, stat, ls, ...
– Dwight Spencer
Mar 4 '14 at 7:12
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