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Why is the order in dictionaries and sets arbitrary?
I don't understand how looping over a dictionary or set in python is done by 'arbitrary' order.
6 Answers
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NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
...sual Studio 2008 has, but I am open to researching other suggestions. Is one system better than the other or perhaps easier to use/understand than the other?
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How to convert an int to a hex string?
...t entirely clear what you need. Based on the description you gave, I think one of these snippets shows what you want.
>>> chr(0x65) == '\x65'
True
>>> hex(65)
'0x41'
>>> chr(65) == '\x41'
True
Note that this is quite different from a string containing an integer as he...
JPA eager fetch does not join
... and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships.
8 Answers
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How good is Java's UUID.randomUUID?
...between JVMs (meaning that any concrete statements made are valid only for one specific JVM), it does mandate that the output must pass a statistical random number generator test.
It's always possible for an implementation to contain subtle bugs that ruin all this (see OpenSSH key generation bug) b...
Why doesn't Java offer operator overloading?
...ces only adds to the confusion of operator overloading. As @Sebastian mentioned, Java and C# both have to deal with value and reference equality separately -- operator+ would likely deal with values and objects, but operator= is already implemented to deal with references.
In C++, you should only b...
Interface or an Abstract Class: which one to use?
...lasses.
Another thing to keep in mind is client classes can only extend one abstract class, whereas they can implement multiple interfaces. So, if you're defining your behavior contracts in abstract classes, that means each child class may only conform to a single contract. Sometimes this a goo...
Add space between HTML elements only using CSS
I have several same HTML elements going one after another:
12 Answers
12
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Working copy XXX locked and cleanup failed in SVN
...
One approach would be to:
Copy edited items to another location.
Delete the folder containing the problem path.
Update the containing folder through Subversion.
Copy your files back or merge changes as needed.
Commit
Anot...
How do I parse an ISO 8601-formatted date?
...hon-dateutil package can parse not only RFC 3339 datetime strings like the one in the question, but also other ISO 8601 date and time strings that don't comply with RFC 3339 (such as ones with no UTC offset, or ones that represent only a date).
>>> import dateutil.parser
>>> date...