... list, you can read its items one by one. Reading its items one by one is called iteration: >>> mylist = [1, 2, 3] >>> for i in mylist: ... print(i) 1 2 3 mylist is an iterable. When you use a list comprehension, you create a list, and so an iterable: >>> mylist = [...

...o this already): Cleanly exiting a function Often in a function, you may allocate resources and need to exit in multiple places. Programmers can simplify their code by putting the resource cleanup code at the end of the function, and all "exit points" of the function would goto the cleanup label....

...should be faster. You don't need the -name *.* either, unless you specifically want only files with a period somewhere in the name. That's a windows glob, not a *nix one. – Useless Aug 15 '11 at 17:31 ...

...a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly used, or an int value that is considered False if equal to zero. Otherwise, if the object has a __len__ special method (as do container built-ins, li...

...ation/x-www-form-urlencoded. The request.getParameter() and consorts would all return null when using multipart form data. This is where the well known Apache Commons FileUpload came into the picture. Don't manually parse it! You can in theory parse the request body yourself based on ServletReques...

...ry generator is an iterator, but not vice versa. A generator is built by calling a function that has one or more yield expressions (yield statements, in Python 2.5 and earlier), and is an object that meets the previous paragraph's definition of an iterator. You may want to use a custom iterator, ra...

... With PHP echo urlencode("http://www.image.com/?username=unknown&password=unknown"); Result http%3A%2F%2Fwww.image.com%2F%3Fusername%3Dunknown%26password%3Dunknown With Javascript: var myUrl = "http://www.image.com/?user...

... If you want all the ancestors rather than just the immediate ones, use inspect.getmro: import inspect print inspect.getmro(cls) Usefully, this gives you all ancestor classes in the "method resolution order" -- i.e. the order in which ...

I want to save all the variables in my current python environment. It seems one option is to use the 'pickle' module. However, I don't want to do this for 2 reasons: ...

...ly developing a site that will make use of HTML5's localStorage. I've read all about the size limitations for different browsers. However, I haven't seen anything on how to find out the current size of a localStorage instance. This question seems to indicate that JavaScript doesn't have a built in...