You’re getting thrown off by the error message; type-wise, Python doesn’t make a distinction – you can .send to anything that uses yield, even if it doesn’t do anything with the sent value internally. In 3.x, there is no longer a .next method attached to these; instead, use the built-in free function next:
The related_name attribute specifies the name of the reverse relation from the User model back to your model. If you don’t specify a related_name, Django automatically creates one using the name of your model with the suffix _set, for instance User.map_set.all(). If you do specify, e.g. related_name=maps on the User model, User.map_set will still work, but the User.maps. syntax is obviously a bit cleaner and less clunky; so for example, if you … Read more
The library BitVector is a pure-Python library for this purpose, and should suit the needs you specified.
I’m not sure if this is quite an answer to your questions but hopefully it explains a bit about the difference between Python 2 and 3 in this regard. In Python 2, iter(d.keys()) and d.iterkeys() are not quite equivalent, although they will behave the same. In the first, keys() will return a copy of the dictionary’s list of keys and iter will then … Read more
The problem is that they’re all the same exact list in memory. When you use the [x]*n syntax, what you get is a list of n many x objects, but they’re all references to the same object. They’re not distinct instances, rather, just n references to the same instance. To make a list of 3 different lists, do this: This gives you 3 … Read more
For background I always make an image the size of my game window or smaller then before all of the images are displayed, I blit that image to 0,0. Hope this helps.
You don’t need to use 4 spaces on your second conditional line. Maybe use: Also, don’t forget the whitespace is more flexible than you might think: Both of those are fairly ugly though. Maybe lose the brackets (the Style Guide discourages this though)? This at least gives you some differentiation. Or even: I think I prefer: Here’s … Read more
No. Python does not have a character or char type. All single characters are strings with length one.
If you want the effect of a nested for loop, use: If you just want to loop simultaneously, use: Note that if x and y are not the same length, zip will truncate to the shortest list. As @abarnert pointed out, if you don’t want to truncate to the shortest list, you could use itertools.zip_longest. UPDATE Based on the request for “a … Read more
You have simply hit the recursion limits. Your list of names is too large for Python’s limited recursion capabilities. Your Quicksort works just fine otherwise. You could raise the recursion limit by setting the limit higher with sys.setrecursionlimit(). You can set it a fair amount higher, but you do so at your own risk. A better option is … Read more