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python Programming Glossary: itertools.permutationsHow to generate all permutations of a list in Python http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python builtin solution in the itertools module import itertools itertools.permutations 1 2 3 python algorithm permutation combinatorics python 2.5.. on Python 3 you have a standard library tool for this itertools.permutations . If you're using an older Python for some reason or are just.. alternative approaches are listed in the documentation of itertools.permutations . Here's one def permutations iterable r None # permutations..
How to solve the “Mastermind” guessing game? http://stackoverflow.com/questions/1185634/how-to-solve-the-mastermind-guessing-game dict G set itertools.product colours repeat holes V set itertools.permutations colours holes score mastermindScore endstates Pegs holes 0 def..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained orders of arrival for a 4 horse race horses 1 2 3 4 races itertools.permutations horses print races itertools.permutations object at 0xb754f1dc.. 1 2 3 4 races itertools.permutations horses print races itertools.permutations object at 0xb754f1dc print list itertools.permutations horses.. itertools.permutations object at 0xb754f1dc print list itertools.permutations horses 1 2 3 4 1 2 4 3 1 3 2 4 1 3 4 2 1 4 2 3 1 4 3 2 2 1 3..
Generate permutations of list with repeated elements http://stackoverflow.com/questions/4250125/generate-permutations-of-list-with-repeated-elements there are 6 unique permutations 1122 1212 1221 etc but itertools.permutations will yield 24 items. It's simple to only record the unique permutations..
all permutations of a binary sequence x bits long http://stackoverflow.com/questions/4928297/all-permutations-of-a-binary-sequence-x-bits-long items.append item perms set for item in items for perm in itertools.permutations item perms.add perm perms list perms perms.sort self.to_bits..
permutations with unique values http://stackoverflow.com/questions/6284396/permutations-with-unique-values with unique values itertools.permutations generates where its elements are treated as unique based on.. So basically I want to avoid duplicates like this list itertools.permutations 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Filtering afterwards..
Why does Python's itertools.permutations contain duplicates? (When the original list has duplicates) http://stackoverflow.com/questions/6534430/why-does-pythons-itertools-permutations-contain-duplicates-when-the-original does Python's itertools.permutations contain duplicates When the original list has duplicates It.. while next_permutation a a 3 On the other hand Python's itertools.permutations seems to print something else import itertools for a in itertools.permutations.. seems to print something else import itertools for a in itertools.permutations 1 1 2 print a This prints 1 1 2 1 2 1 1 1 2 1 2 1 2 1 1 2 1..
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