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Why is “if not someobj:” better than “if someobj == None:” in Python?
...mp__ method, it is called. This function must return an int indicating the order of the two object (-1 if self < other, 0 if self == other, +1 if self > other).
Otherwise, the object are compared for identity (ie. they are reference to the same object, as can be tested by the is operator).
T...
Pretty-print C++ STL containers
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If I'm reading this right, in order to have a pair print as <i, j> in one function and as [i j] in another, you have to define a whole new type, with a handful of static members in order to pass that type to print_container_helper? That seems overl...
Python argparse: How to insert newline in the help text?
... the right direction above. But that solution needs slight modification in order to format description section.
Anyway, custom formatter is needed. I extended existing HelpFormatter class and overrode _fill_text method like this:
import textwrap as _textwrap
class MultilineFormatter(argparse.HelpF...
'UserControl' constructor with parameters in C#
...s Designer forces you to provide a parameterless constuctor on controls in order to work properly. Actually, it only requires a parameterless constructor in order to instantiate controls, but not to design them (the designer will actually parse the InitializeComponent method while designing a contro...
How do you run your own code alongside Tkinter's event loop?
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What is the combinatory logic equivalent of intuitionistic type theory?
... leave abstractions unbracketed when they're the last argument of a higher-order operator: you can see I did that with Pi. Your Agda type (x : S) -> T becomes Pi S \ x:S -> T.
(Digression. Type annotations on lambda are necessary if you want to be able to synthesize the type of abstractions. ...
undefined reference to `WinMain@16'
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Obfuscated C Code Contest 2006. Please explain sykes2.c
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What does the line “#!/bin/sh” mean in a UNIX shell script?
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It's called a shebang, and tells the parent shell which interpreter should be used to execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, because ...
Git Push into Production (FTP)
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github.com/banago/PHPloy also does a similar thing but works with submodules, which I suspect some of the mentioned tools might struggle with.
– Simon East
Apr 11 '14 at 12:44
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