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python Programming Glossary: permHow to generate all permutations of a list in Python http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python to generate all permutations of a list in Python How do you generate all the permutations.. of a list in Python How do you generate all the permutations of a list in Python independently of the type of elements.. of the type of elements in that list. For example permutations permutations 1 1 permutations 1 2 1 2 2 1 permutations..
Add columns to CSV while writing the CSV http://stackoverflow.com/questions/20224912/add-columns-to-csv-while-writing-the-csv # move existing file to backup create new file with same permissions # borrowed extensively from the fileinput module if set.. encoding encoding errors errors newline newline try perm os.fstat readable.fileno .st_mode except OSError writable open.. 'O_BINARY' os_mode os.O_BINARY fd os.open filename os_mode perm writable io.open fd w mode.replace 'r' '' buffering buffering..
Python: using a recursive algorithm as a generator http://stackoverflow.com/questions/248830/python-using-a-recursive-algorithm-as-a-generator Here is an example. Suppose we want to compute all the permutations of a string with a recursive function. The following.. algorithm takes an extra argument 'storage' and appends a permutation to it whenever it finds one def getPermutations string.. prefix string i storage getPermutations abcd storage for permutation in storage print permutation Please don't care about..
Set permissions on a compressed file in python http://stackoverflow.com/questions/279945/set-permissions-on-a-compressed-file-in-python permissions on a compressed file in python I have a file test.txt.. file test.txt that is inside a zip archive test.zip . The permissions on test.txt are out of my control when it's compressed.. anything but OS X it doesn't error but doesn't change the permissions either. Any ideas why Also how does writestr work I know..
How to get a list of all users with a specific permission group in Django http://stackoverflow.com/questions/378303/how-to-get-a-list-of-all-users-with-a-specific-permission-group-in-django to get a list of all users with a specific permission group in Django I want to get a list of all Django auth.. want to get a list of all Django auth user with a specific permission group something like this user_dict 'queryset' User.objects.filter.. like this user_dict 'queryset' User.objects.filter permisson 'blogger' But I cant seem to find out how to do this. How..
all permutations of a binary sequence x bits long http://stackoverflow.com/questions/4928297/all-permutations-of-a-binary-sequence-x-bits-long permutations of a binary sequence x bits long I would like to find.. like to find a clean and clever way in python to find all permutations of strings of 1s and 0s x chars long. Ideally this would.. 1 for i in xrange zeros item.append 0 items.append item perms set for item in items for perm in itertools.permutations item..
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