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RuntimeError on windows trying python multiprocessing
...s."
which say
"Make sure that the main module can be safely imported by a new Python
interpreter without causing unintended side effects (such a starting a
new process)."
... by using if __name__ == '__main__'
sh...
Recursively remove files
... point. Wouldn't command rm be a better (that is, more direct) solution? (By "direct" I mean it deals specifically with the problem at hand and nothing else, and therefore is less likely to have any unwanted side-effects, and is also going to be more self-explanatory to anyone who has to maintain t...
Bash syntax error: unexpected end of file
...
i also just got this error message by using the wrong syntax in an if clause
else if (syntax error: unexpected end of file)
elif (correct syntax)
i debugged it by commenting bits out until it worked
...
Kotlin: how to pass a function as parameter to another?
...an now use functions that are class members ("Bound Callable References"), by prefixing the function reference operator with the instance:
foo("hi", OtherClass()::buz)
foo("hi", thatOtherThing::buz)
foo("hi", this::buz)
...
Package cairo was not found in the pkg-config search path. Node j.s install canvas issue
... the same problem on OS X 10.11.2 while installing qrcode package.
Solved by installing these ones:
brew install cairo
brew install pkg-config
xcode-select --install
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...
Why em instead of px?
...t least some px-based measurements in a design. Images, for example, will (by default) be scaled such that each pixel is 1*px* in size, so if you are designing around an image you'll need px units. It is also very useful for precise font sizing, and for border widths, where due to rounding it makes...
iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?
...l past the document height and magically the window.innerHeight is reduced by the height of the virtual keyboard. Note that the size of the virtual keyboard is different for landscape vs. portrait orientations so you'll need to redetect it when it changes. I would advise against remembering these va...
Java equivalent of C#'s verbatim strings with @
... escaped backslashes, the correct way to handle your particular example is by getting the file separator property:
String sep = System.getProperty("file.separator");
String filename = ROOTDIR + sep + "folder" + sep + "afile";
Where you'd have separately created ROOTDIR based on some poli...
How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
...esired layout:
@{
Layout = "~/Views/Shared/_PublicLayout.cshtml";
}
By analogy you could put another _ViewStart.cshtml file inside the /Views/Staff folder with:
@{
Layout = "~/Views/Shared/_StaffLayout.cshtml";
}
You could also specify which layout should be used when returning a view ...
What is the main difference between Inheritance and Polymorphism?
...own implementation of read, which method gets called is determined for you by the runtime, depending if you have a Person or a Student. It gets a bit tricky, but if you do something like
Person p = new Student();
p.read();
the read method on Student gets called. Thats the polymorphism in action...