python Programming Glossary: collision

Python print statement ?侻yntaxError: invalid syntax??/a>

http://stackoverflow.com/questions/7584489/python-print-statement-syntaxerror-invalid-syntax

Python: Reducing memory usage of dictionary

http://stackoverflow.com/questions/10264874/python-reducing-memory-usage-of-dictionary

not predictable from the position of the bucket due to the collision resolution strategy used a pointer to the key object a pointer..

'order' of unordered Python sets

http://stackoverflow.com/questions/12165200/order-of-unordered-python-sets

gets a little more complicated when you need to resolve collisions between hashes but that's the gist of it. Also note that the.. out is determined by the order that you put them in due to collisions . So if you reorder the list you pass to set_2 you might get.. set_2 you might get a different order out if there are key collisions. For example list1 8 16 24 set list1 #set 8 16 24 list2 24..

Understanding performance difference

http://stackoverflow.com/questions/17640235/understanding-performance-difference

getting key from that bin hopefully there will be no key collisions and then getting value associated with that key. The second.. to shine. The worse case for the first solution hash collision Let N 10000 xs 2 32 x 2 x 1 1 for x in range 100 # hash 2 32.. function for the objects is sufficiently robust to make collisions uncommon. The Average Case assumes the keys used in parameters..

Pygame- window and sprite class - python

http://stackoverflow.com/questions/19936347/pygame-window-and-sprite-class-python

image_rect self.image.get_rect # Rect class to use Sprite collision detect in the future # In rect you have sprite position and..

Space invaders project

http://stackoverflow.com/questions/19966094/space-invaders-project

for pause . There is still much to do. For example better collision detect pygame.sprite.collide_rect I attached my bitmaps at the..

Python: Random is barely random at all?

http://stackoverflow.com/questions/2145510/python-random-is-barely-random-at-all

occur in the sample. The probability # of at least one collision is 1.0 the probability that no # matching pairs exist. # print..

Python tips for memory optimization

http://stackoverflow.com/questions/3021264/python-tips-for-memory-optimization

using them as keys But then sadly I ran into birthday collisions on my 32 bit system. side question is there a 64 bit key dictionary.. an in memory dictionary with string hashes as keys. If a collision occurs fetch values from the DB otherwise vast majority of the.. based 8 bytes per pair it takes care of key hashing and collision checking it keeps the array several smaller arrays actually..

How are Python's Built In Dictionaries Implemented

http://stackoverflow.com/questions/327311/how-are-pythons-built-in-dictionaries-implemented

as hash tables . Hash tables must allow for hash collisions i.e. even if two keys have same hash value the implementation.. Python dict uses open addressing to resolve hash collisions explained below see dictobject.c 296 297 . Python hash table.. Most likely because another entry has the same hash hash collision If the slot is occupied CPython and even PyPy compares the the..

Is this an appropriate use of python's built-in hash function?

http://stackoverflow.com/questions/7646520/is-this-an-appropriate-use-of-pythons-built-in-hash-function

I am happy to have a few incorrect results if a hash collision is reasonably rare rare in the sense of needing an array of.. of needing an array of 200 PS3s several hours to make a collision In 1 import hashlib In 2 with open ' dev urandom' as f ... spam.. 10000000 loops best of 3 160 ns per loop python hash hash collision share improve this question Python's hash function is designed..

Why is early return slower than else?

http://stackoverflow.com/questions/8271139/why-is-early-return-slower-than-else

My guess is that without_else has a hash collision with something else in globals so the global name lookup is.. has 32 slots so on that basis without_else has a hash collision with __builtins__ k hash k 32 for k in globals .keys '__builtins__'.. to 505688136 which reduced modulo 32 is 8 so there's a collision. To resolve this Python calculates Starting with j hash 32 perturb..