...[:-2] and a only contains one element, you get an empty list instead of an error. Sometimes you would prefer the error, so you have to be aware that this may happen. Relation to slice() object The slicing operator [] is actually being used in the above code with a slice() object using the : notati...

... HttpResponse response) { } @Override public void error(String message, HttpResponse response) { } @Override public void failure(NetworkError error) { } @Override public void complete() { } }).execute(); It is f...

...r field representation to a date you can use: select date(substring('2011/05/26 09:00:00' from 1 for 10)); Test code: create table test_table (timestamp_field timestamp); insert into test_table (timestamp_field) values(current_timestamp); select timestamp_field, date(timestamp_field) from test_t...

...eration finishes succesfully, the transaction is marked as complete. If an error occurs, the transaction is "rolled back" and the repository is left in the same state as before. You can manually trigger a rollback with 'hg rollback'. This will undo the last transactional command. If a pull command...

...e because some values which are simple, finite decimals (such as 0.1 and 0.05) are not represented exactly in the computer and so the results of arithmetic on them may not give a result that is identical to a direct representation of the "known" answer. This is a well known limitation of computer a...

...iew, how the iterator should behave is not well defined, which can lead to errors. One advantage is that looking at, say, the keys uses only a small and fixed amount of memory and requires a small and fixed amount of processor time, as there is no creation of a list of keys (Python 2, on the other...

...file_exists($path)) { if(!mkdir($path, 600)) { trigger_error("Failed to create session save path directory '$path'. Check permissions.", E_USER_ERROR); } } ini_set("session.save_path", $path); // Set the chance to trigger the garbage collection. ini_set("...

...in did not work for me. It still used up all my memory and then printed an error message :-(. I could not use hexedit for either, as it cannot insert anything, just overwrite. Here is an alternative approach: You split the file, edit the parts and then recombine it. You still need twice the disk sp...

...st has some good steps for modifying file templates in Xcode 4.3: http://error-success.piku.org.uk/2012/04/27/how-to-make-xcode-4-3-2-templates/ The /Developer folder no longer exists, so you copy the templates from within the Xcode.app bundle located in /Applications: /Applications/Xcode.app/Co...

...usr/bin/gcc-4.2. Now the default installation path is /usr/bin/gcc. My error looked like this: make: /usr/bin/gcc-4.2: No such file or directory A symlink will sort out the issue: sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2 ...