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When should I use @classmethod and when def method(self)?
...alled.
In [6]: class Foo(object): some_static = staticmethod(lambda x: x+1)
In [7]: Foo.some_static(1)
Out[7]: 2
In [8]: Foo().some_static(1)
Out[8]: 2
In [9]: class Bar(Foo): some_static = staticmethod(lambda x: x*2)
In [10]: Bar.some_static(1)
Out[10]: 2
In [11]: Bar().some_static(1)
Out[11...
dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
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In Maven 2, how do I know from which dependency comes a transitive dependency?
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132
To add to @David Crow, here's a dependency:tree example from the Maven site:
mvn dependency:t...
How to get everything after a certain character?
...ffset of the underscore, then substr grabs everything from that index plus 1, onwards.
$data = "123_String";
$whatIWant = substr($data, strpos($data, "_") + 1);
echo $whatIWant;
If you also want to check if the underscore character (_) exists in your string before trying to get it, you ...
surface plots in matplotlib
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122
For surfaces it's a bit different than a list of 3-tuples, you should pass in a grid for the d...
How to limit depth for recursive file list?
...
Checkout the -maxdepth flag of find
find . -maxdepth 1 -type d -exec ls -ld "{}" \;
Here I used 1 as max level depth, -type d means find only directories, which then ls -ld lists contents of, in long format.
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Fast way to get image dimensions (not filesize)
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195
The file command prints the dimensions for several image formats (e.g. PNG, GIF, JPEG; recent...