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Python argparse: default value or specified value
...example=1)
% test.py --example 2
Namespace(example=2)
nargs='?' means 0-or-1 arguments
const=1 sets the default when there are 0 arguments
type=int converts the argument to int
If you want test.py to set example to 1 even if no --example is specified, then include default=1. That is, with
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Why is arr = [] faster than arr = new Array?
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answered Sep 10 '11 at 23:51
Roger PoonRoger Poon
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How to uncompress a tar.gz in another directory
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edited Mar 7 '16 at 10:26
answered Aug 23 '13 at 12:19
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How can I return an empty IEnumerable?
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answered Jul 12 '10 at 15:24
Michael MrozekMichael Mrozek
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Using usort in php with a class private function
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230
Make your sort function static:
private static function merchantSort($a,$b) {
return ......
How is this fibonacci-function memoized?
... and kept ready in case it is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal do...
What is sys.maxint in Python 3?
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180
The sys.maxint constant was removed, since there is no longer a limit
to the value of integ...
Object.getOwnPropertyNames vs Object.keys
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edited Jul 20 at 18:26
Scott Enock
611010 bronze badges
answered Mar 26 '14 at 10:47
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Update a local branch with the changes from a tracked remote branch
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edited Jun 25 at 17:03
SexxLuthor
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answered...
rspec 3 - stub a class method
I am upgrading from rspec 2.99 to rspec 3.0.3 and have converted instance methods to use allow_any_instance_of , but haven't figured out how to stub a class method. I have code like this:
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