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python Programming Glossary: abhttp://stackoverflow.com/questions/1087255/use-of-eval-in-python first then keep the node around perhaps munge it with suitable visitors e.g. for variable lookup then literal_eval the node.. perhaps munge it with suitable visitors e.g. for variable lookup then literal_eval the node or once having put the node.. simple as eval for the simplest cases but safer and preferable in production quality code. For many tasks I've seen people..
Passing argument from Parent function to nested function Python http://stackoverflow.com/questions/14678434/passing-argument-from-parent-function-to-nested-function-python still use it as a binding occurrence by marking the variable as nonlocal this is a keyword introduced for just this usecase.. n 1 g 0 In python 2 you have a few work arounds using a mutable to avoid needing to bind it or ab using a function property.. arounds using a mutable to avoid needing to bind it or ab using a function property def f x x x # lists are mutable def..
when does Python allocate new memory for identical strings? http://stackoverflow.com/questions/2123925/when-does-python-allocate-new-memory-for-identical-strings memory id a id b or may be in memory twice id a id b . Try ab ab print id ab id a b Here Python recognizes that the newly.. id a id b or may be in memory twice id a id b . Try ab ab print id ab id a b Here Python recognizes that the newly created.. b or may be in memory twice id a id b . Try ab ab print id ab id a b Here Python recognizes that the newly created a b is..
How to sort a Python dict by value http://stackoverflow.com/questions/3417760/how-to-sort-a-python-dict-by-value
Placing Custom Images in a Plot Window--as custom data markers or to annotate those markers http://stackoverflow.com/questions/4860417/placing-custom-images-in-a-plot-window-as-custom-data-markers-or-to-annotate-t zoom .1 xy 0.25 0.45 # coordinates to position this image ab AnnotationBbox imagebox xy xybox 30. 30. xycoords 'data' boxcoords.. xycoords 'data' boxcoords offset points ax.add_artist ab # add second image arr_vic read_png ' path to this image2.png'.. zoom .1 xy .6 .3 # coordinates to position 2nd image ab AnnotationBbox imagebox xy xybox 30 30 xycoords 'data' boxcoords..
Iterate over a python sequence in multiples of n? http://stackoverflow.com/questions/760753/iterate-over-a-python-sequence-in-multiples-of-n in batches idiomatically For example with the sequence abcdef and a batch size of 2 I would like to do something like.. I would like to do something like the following for x y in abcdef print s s n x y ab cd ef Of course this doesn't work because.. like the following for x y in abcdef print s s n x y ab cd ef Of course this doesn't work because it is expecting a..
ab is erroring out with apr_socket_recv: Connection refused (61) http://stackoverflow.com/questions/7938869/ab-is-erroring-out-with-apr-socket-recv-connection-refused-61 is erroring out with apr_socket_recv Connection refused 61 .. I am testing eventlet out and I am getting this error ~ ab n 10 c 1 http localhost 8090 This is ApacheBench Version 2.3.. I found using 127.0.0.1 rather than localhost worked ab n 10 c 1 http 127.0.0.1 8090 Update May have been a bug in ab..
How to generate all permutations of a list in Python http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python one def permutations iterable r None # permutations 'ABCD' 2 AB AC AD BA BC BD CA CB CD DA DB DC # permutations range.. def permutations iterable r None # permutations 'ABCD' 2 AB AC AD BA BC BD CA CB CD DA DB DC # permutations range 3 012..
Storing parts of string in Array in python http://stackoverflow.com/questions/16436036/storing-parts-of-string-in-array-in-python My string contains large paragraph like this Line Name AB 1 2 Name ID CD 3 4 int Stu EF 5 6 Name Email GH 7 8 string ID.. which come above ID into an array like this A 0 Name AB 1 2 Name A 1 Stu EF 5 6 Name Email GH 7 8 string A 2 Tea KL.. way to do this. You can use regex import re Line Name AB 1 2 Name ID CD 3 4 int Stu EF 5 6 Name Email GH 7 8 string ID..
Python model inheritance and order of model declaration http://stackoverflow.com/questions/16907186/python-model-inheritance-and-order-of-model-declaration abg Npghnyyl ab ..... nyevtug gura ZNXR VG FGBC BU TBQ AB CYRNFR AB LBH'ER OERNXVAT CLGUBA GUVF VF ABG PBAFRAGHNY V'Z.. ab ..... nyevtug gura ZNXR VG FGBC BU TBQ AB CYRNFR AB LBH'ER OERNXVAT CLGUBA GUVF VF ABG PBAFRAGHNY V'Z GRYYVAT THVQB.. FGBC BU TBQ AB CYRNFR AB LBH'ER OERNXVAT CLGUBA GUVF VF ABG PBAFRAGHNY V'Z GRYYVAT THVQB return encode ze_nterrnoyr insane_strs..
Speeding up a closest point on a hyperbolic paraboloid algorithm http://stackoverflow.com/questions/18858448/speeding-up-a-closest-point-on-a-hyperbolic-paraboloid-algorithm BC 0. return c 0. 1. # See if segment length is 0 ab b a AB np.linalg.norm ab if AB 0. return a 0. 0. # Normalize segment.. See if segment length is 0 ab b a AB np.linalg.norm ab if AB 0. return a 0. 0. # Normalize segment and do edge tests ab ab.. return a 0. 0. # Normalize segment and do edge tests ab ab AB test np.dot ac ab if test 0. return a AC 0. elif test AB return..
How to make a checkerboard in numpy? http://stackoverflow.com/questions/2169478/how-to-make-a-checkerboard-in-numpy
algorithm for python itertools.permutations http://stackoverflow.com/questions/2565619/algorithm-for-python-itertools-permutations Code is def permutations iterable r None # permutations 'ABCD' 2 AB AC AD BA BC BD CA CB CD DA DB DC # permutations range.. def permutations iterable r None # permutations 'ABCD' 2 AB AC AD BA BC BD CA CB CD DA DB DC # permutations range 3 012.. we have def permutations iterable r None # permutations 'ABCD' 2 AB AC AD BA BC BD CA CB CD DA DB DC # permutations range..
Finding combination in Python without importing itertools http://stackoverflow.com/questions/3902009/finding-combination-in-python-without-importing-itertools docs and read the source def product args kwds # product 'ABCD' 'xy' Ax Ay Bx By Cx Cy Dx Dy # product range 2 repeat 3 000.. tuple prod and def combinations iterable r # combinations 'ABCD' 2 AB AC AD BC BD CD # combinations range 4 3 012 013 023.. and def combinations iterable r # combinations 'ABCD' 2 AB AC AD BC BD CD # combinations range 4 3 012 013 023 123 pool..
Is there a good way to do this type of mining? http://stackoverflow.com/questions/7076349/is-there-a-good-way-to-do-this-type-of-mining with 4 points A B C and D there are the three pairs AB BC and CD . For each pair we can give a score which is the number..
http://stackoverflow.com/questions/8646186/yielding-sub-combinations for a given segment. For example sub_combinations ABCD should yield A B C D A B CD A BC D A BCD AB C D AB CD ABC.. ABCD should yield A B C D A B CD A BC D A BCD AB C D AB CD ABC D ABCD ABD C AC BD AC B D ACD B AD BC AD B C A.. ABCD should yield A B C D A B CD A BC D A BCD AB C D AB CD ABC D ABCD ABD C AC BD AC B D ACD B AD BC AD B C A C B D..
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