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Python syntax for “if a or b or c but not all of them”
I have a python script that can receive either zero or three command line arguments. (Either it runs on default behavior or needs all three values specified.)
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How to create an object for a Django model with a many to many field?
...my original suggestion. It works, but isn't optimal. (Note: I'm using Bars and a Foo instead of Users and a Sample, but you get the idea).
bar1 = Bar.objects.get(pk=1)
bar2 = Bar.objects.get(pk=2)
foo = Foo()
foo.save()
foo.bars.add(bar1)
foo.bars.add(bar2)
It generates a whopping total of 7 quer...
When to use Common Table Expression (CTE)
I have begun reading about Common Table Expression and cannot think of a use case where I would need to use them. They would seem to be redundant as the same can be done with derived tables. Is there something I am missing or not understanding well? Can someone give me a simple example of limitati...
Adding external library in Android studio
I want to add external library https://github.com/foursquare/foursquare-android-oauth to my Android application (I use Android Studio, the instructions provided by lib author for Eclipse didn't work for Android Studio).
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Group query results by month and year in postgresql
...m("Sales") as "Sales" : The SUM() function adds up all the "Sales" values, and supplies a case-sensitive alias, with the case sensitivity maintained by using double-quotes.
group by 1,2 : The GROUP BY function must contain all columns from the SELECT list that are not part of the aggregate (aka, al...
Can promises have multiple arguments to onFulfilled?
I'm following the spec here and I'm not sure whether it allows onFulfilled to be called with multiple arguments. For example:
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Jquery mouseenter() vs mouseover()
...ter reading a recently answered question i am unclear if i really understand the difference between the mouseenter() and mouseover() . The post states
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i18n Pluralization
... }
}
}
}
}
Native speakers may enjoy cases such as 111 and 121.
And here the test results:
zero: 0 запросов/куриц/яблок
one: 1 запрос/курица/яблоко
few: 3 запроса/курицы/яблока
many: 5 запросов/куриц/яблок...
Printing everything except the first field with awk
...1 = ""; print $0, first; }'
You can also find the number of columns in NF and use that in a loop.
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How to format numbers as currency string?
...ce in JavaScript. I'd like a function which takes a float as an argument and returns a string formatted like this:
66 A...