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Python's os.makedirs doesn't understand “~” in my path
...xpansion and is a common user interface feature. The file system does not know anything about it.
In Python, this feature is implemented by os.path.expanduser:
my_dir = os.path.expanduser("~/some_dir")
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Difference between API and ABI
...bels = 123L;
int ok = livenMyHills( howManyDecibels);
and we needed to know that there is a method livenMyHills(), which takes a long integer parameter. So as a Programming Interface it's all expressed in source code. The compiler turns this into executable instructions which conform to the imple...
Selecting the last value of a column
...pefully one that is not hard coded), but this is the best I could find for now.
Note that if you use the function in cell like stated earlier, it will update upon reload. Maybe there is a way to hook into onEdit() and force in cell functions to update. I just can't find it in the documentation.
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How to properly assert that an exception gets raised in pytest?
...nstantly evolves and with one of the nice changes in the recent past it is now possible to simultaneously test for
the exception type (strict test)
the error message (strict or loose check using a regular expression)
Two examples from the documentation:
with pytest.raises(ValueError, match='mu...
npm - how to show the latest version of a package
...an use:
npm show {pkg} version
(so npm show express version will return now 3.0.0rc3).
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How to bind to a PasswordBox in MVVM
...other client machine text. Don't keep clear text passwords in memory.
I know this breaks the MVVM pattern, but you shouldn't ever bind to PasswordBox.Password Attached DP, store your password in the ViewModel or any other similar shenanigans.
If you're looking for an over-architected solution, he...
Removing an element from an Array (Java) [duplicate]
...y bad programming.
Suppose you had an array taking up, say, 100mb of ram. Now you want to iterate over it and delete 20 elements.
Give it a try...
I know you ASSUME that it's not going to be that big, or that if you were deleting that many at once you'd code it differently, but I've fixed an a...
Database, Table and Column Naming Conventions? [closed]
...ink how many c# developers hated the "var" keyword when it was introduced, now its the widely accepted way to define variables.
– Jason
Apr 10 '12 at 16:39
7
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Is there a literal notation for an array of symbols?
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Yes! This is possible now in Ruby 2.0.0. One way to write it is:
%i{foo bar} # => [:foo, :bar]
You can also use other delimiters, so you could also write %i(foo bar) or %i!foo bar! for example.
This feature was originally announced here:
...
Access to Modified Closure (2)
...{
// ... code
obj.SomeEvent -= bar;
};
obj.SomeEvent += bar;
This is now self-unsubscribing ;-p
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