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How to call an external command?
...s.run(["ls", "-l"])
The advantage of subprocess vs. system is that it is more flexible (you can get the stdout, stderr, the "real" status code, better error handling, etc...).
The official documentation recommends the subprocess module over the alternative os.system():
The subprocess module p...
List vs tuple, when to use each? [duplicate]
... of naming the fields, which would make accessing individual elements much more readable...
– GreenAsJade
Feb 19 '15 at 5:48
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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
... file.
Remove it in .xib or .storyboard file's Connection Inspector.
One more possible reason
(In my case) Extension of UIView with bindable properties and setting values for those bindable properties (i.e. shadow, corner radius etc.) then remove those properties from UIView extension (for some...
What's wrong with overridable method calls in constructors?
...ign and document for inheritance, or else prohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors must not invoke overridable methods, directly or indirectly. If you violate this rule, program failure will result. The superclass constructor runs b...
How can I fill out a Python string with spaces?
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@simon 's answer is more flexible and more useful when formatting more complex strings
– CoatedMoose
Jul 27 '13 at 7:08
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Git push failed, “Non-fast forward updates were rejected”
...it push origin --force (I recommend the command line as you will find much more support from other users with the command line. Also this may not be possible with SmartGit.) See this site for more information: http://help.github.com/remotes/
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Is there a way to make a PowerShell script work by double clicking a .ps1 file?
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Find the index of a dict within a list, by matching the dict's value
...icity is somewhat subjective so I won't dispute it, probably a for-loop is more pythonic. On the other hand, some people aliases next() for first(), and that definitely sounds better: first(index for (index, d) in ...).
– tokland
Dec 8 '10 at 21:03
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What is the explicit promise construction antipattern and how do I avoid it?
... // much nicer, right?
}
Promises are all about making asynchronous code more readable and behave like synchronous code without hiding that fact. Promises represent an abstraction over a value of one time operation, they abstract the notion of a statement or expression in a programming language.
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What is the difference between GitHub and gist?
...l requests or wiki. If you dont need to have that, gists are very nice and more discrete. Like the comments, instead of answers, in SO.
– joseLuís
Feb 3 '17 at 22:11
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