Jun 21, 2015 · Python 2.7.3 $ python -mtimeit 'while 0:pass' 100000000 loops, best of 3: 0.0132 usec per loop $ python -mtimeit 'while False:pass' 10000000 loops, best of 3: 0.0538 usec per …

Jul 21, 2010 · In Python 3.x, iteritems() was replaced with simply items(), which returns a set-like view backed by the dict, like iteritems() but even better. This is also available in 2.7 as …

In Python you generally have for in loops instead of general for loops like C/C++, but you can achieve the same thing with the following code. for k in range(1, c+1, 2): do something with k …

Python doesn't have a foreach loop. Python's for loop is always the equivalent of a "foreach" in other languages, and it's certainly not more of a "foreach" in the OP's code than in yours. And I …

May 30, 2011 · Python Enhancement Proposal (PEP) 3136 suggested adding these to Python but Guido rejected it: However, I'm rejecting it on the basis that code so complicated to require this …

Every time I write a while loop where the variable that the condition checks is set inside the loop (so that you have to initialize that variable before the loop, like in your second example), it …

May 28, 2012 · I'm building a kind of question sequence as part of a program in Python 3.2. Basically, I ask a question and await an answer between two possibilities. If the given answer …

Aug 18, 2013 · The correct answer is "python collections do not have a foreach". In native python we need to resort to the external for _element_ in _collection_ syntax which is not what the OP …

Consider processing iterables. You can do it with a for loop: for i in mylist: print i Or, you can do it with a while loop: it = mylist.__iter__() while True: try: print it.next() except StopIteration: break …

Dec 15, 2017 · @Robin the confusion is a good illustration of the common confusion between while cond do {} and repeat {} until cond loops. A while loop continues as long as its condition …