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What does the caret operator (^) in Python do?
I ran across the caret operator in python today and trying it out, I got the following output:
5 Answers
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Large, persistent DataFrame in pandas
I am exploring switching to python and pandas as a long-time SAS user.
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Getting Java version at runtime
... a Java bug in JDK 1.5 which was fixed in 1.6. I'm using the following condition:
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Select last row in MySQL
...s the right answer! Kind of:
SELECT fields FROM table ORDER BY id DESC LIMIT 1;
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Serializing with Jackson (JSON) - getting “No serializer found”?
...or have public getters/setters. An alternative to changing the class definition to make a field public or to provide a public getter/setter is to specify (to the underlying VisibilityChecker) a different property visibility rule. Jackson 1.9 provides the ObjectMapper.setVisibility() convenience me...
Easy way to convert Iterable to Collection
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With Guava you can use Lists.newArrayList(Iterable) or Sets.newHashSet(Iterable), among other similar methods. This will of course copy all the elements in to memory. If that isn't acceptable, I think your code that works with...
How to add a custom HTTP header to every WCF call?
...t identifier is important for what the called method should do). I thought it is a good idea to somehow put this identifier to the WCF header information.
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Renaming or copying files and folder using NERDTree on Vim. Is it possible?
...ldn't find a way o renaming or copying files and folder using NERDTree. Is it possible?
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Where do you include the jQuery library from? Google JSAPI? CDN?
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Without a doubt I choose to have JQuery served by Google API servers. I didn't go with the jsapi method since I don't leverage any other Google API's, however if that ever changed then I would consider it...
First: The Googl...
How do we count rows using older versions of Hibernate (~2009)?
...if we have a table Books, how would we count total number of book records with hibernate?
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