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Python constructor and default value [duplicate]
Somehow, in the Node class below, the wordList and adjacencyList variable is shared between all instances of Node.
4 An...
Is asynchronous jdbc call possible?
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I don't understand how any of the proposed approaches that wrap JDBC calls in Actors, executors or anything else can help here - can someone clarify.
Surely the basic problem is that the JDBC operations block on socket IO. When it does thi...
Turning a Comma Separated string into individual rows
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@NickW this may be because the parts before and after UNION ALL return different types from the LEFT function. Personally I don't see why you wouldn't jump to MAX once you get to 4000...
– RichardTheKiwi
Feb 22 '12 at 8:35
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Weird “[]” after Java method signature
I looked at some Java code today, and I found some weird syntax:
4 Answers
4
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How can I split and parse a string in Python?
...a fact that the string contains an underscore, you can even unpack the LHS and RHS into separate variables:
In [8]: lhs, rhs = "2.7.0_bf4fda703454".split("_", 1)
In [9]: lhs
Out[9]: '2.7.0'
In [10]: rhs
Out[10]: 'bf4fda703454'
An alternative is to use partition(). The usage is similar to the la...
Avoiding “resource is out of sync with the filesystem”
I develop Java code with Eclipse and regularly get this message:
10 Answers
10
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How to debug a Flask app
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Running the app in development mode will show an interactive traceback and console in the browser when there is an error. To run in development mode, set the FLASK_ENV=development environment variable then use the flask run command (remember to point FLASK_APP to your app as well).
For Linux, M...
Regex for string not ending with given suffix
...sily extend this with other characters, since this checking for the string and isn't a character class.
.*(?<!ab)$
This would match anything that does not end with "ab", see it on Regexr
share
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Accessing dict keys like an attribute?
... Unless - of course - you assign some value to them, see below)
Attributes and items are always in sync
Trying to access non-existent key as an attribute correctly raises AttributeError instead of KeyError
Supports [Tab] autocompletion (e.g. in jupyter & ipython)
Cons:
Methods like .keys() wil...
Which annotation should I use: @IdClass or @EmbeddedId
...fication has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
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