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python Programming Glossary: millionsPython: Reducing memory usage of dictionary http://stackoverflow.com/questions/10264874/python-reducing-memory-usage-of-dictionary about 50 80k lines except for one file which currently has millions of lines. So I would like to ask for a technique data structure..
Python Numpy Very Large Matrices http://stackoverflow.com/questions/1053928/python-numpy-very-large-matrices which is handy when dealing with tens or hundreds of millions of rows. It's also very fast my 5 year old laptop can crunch..
Comparing persistent storage solutions in python http://stackoverflow.com/questions/1235594/comparing-persistent-storage-solutions-in-python on a new scientific project which has a lot of data millions of entries I'd like to store in an easily and quickly accessible..
What happens when you call `if key in dict` http://stackoverflow.com/questions/13001913/what-happens-when-you-call-if-key-in-dict time. Over the course of my program many in the order of millions myClass objects are instantiated. This is why I use the dict..
ode integration in python versus mathematica results http://stackoverflow.com/questions/16222302/ode-integration-in-python-versus-mathematica-results program has a higher error tolerance when simulating over millions of seconds in flight time. My question is which program is more..
Removing the lists from a list which are duplicated for some items http://stackoverflow.com/questions/16878062/removing-the-lists-from-a-list-which-are-duplicated-for-some-items a very long time to execute as the original list contains millions of list. b_li output_list for x in li s x 0 x 2 if s not in..
Migrating data when changing an NDB field's property type http://stackoverflow.com/questions/19842671/migrating-data-when-changing-an-ndb-fields-property-type migrate data without deploying any new code. If you have millions of entities then you should look at other approaches for processing..
Alternatives to keeping large lists in memory (python) http://stackoverflow.com/questions/1989251/alternatives-to-keeping-large-lists-in-memory-python library array module as the best way to keep a few millions of them in memory the tip of your virtual array with a binary..
How do I iterate through the alphabet in Python? http://stackoverflow.com/questions/228730/how-do-i-iterate-through-the-alphabet-in-python every character you'd be waiting a long time there are millions of unicode characters. To implement your original function print..
http://stackoverflow.com/questions/2801008/mongodb-insert-if-not-exists very slow 40 mins for less than 100 000 records and I have millions of them in the update . I am pretty sure there is something..
Efficiently finding the shortest path in large graphs http://stackoverflow.com/questions/3038661/efficiently-finding-the-shortest-path-in-large-graphs a huge graph. It has hundreds of thousands of vertices and millions of edges. I know this question has been asked before and I guess..
Combining two sorted lists in Python http://stackoverflow.com/questions/464342/combining-two-sorted-lists-in-python other optimisations to be made first e.g not storing millions of datetime objects Using the timeit.Timer .repeat which repeats..
Is there a way to efficiently yield every file in a directory containing millions of files? http://stackoverflow.com/questions/5090418/is-there-a-way-to-efficiently-yield-every-file-in-a-directory-containing-million to efficiently yield every file in a directory containing millions of files I'm aware of os.listdir but as far as I can gather..
Probability distribution in Python http://stackoverflow.com/questions/526255/probability-distribution-in-python not seem to provide this. I have to make such choices many millions of times for 1000 different sets of objects each containing..
Use binary COPY table FROM with psycopg2 http://stackoverflow.com/questions/8144002/use-binary-copy-table-from-with-psycopg2 binary COPY table FROM with psycopg2 I have tens of millions of rows to transfer from multidimensional array files into a..
Python : 2d contour plot from 3 lists : x, y and rho? http://stackoverflow.com/questions/9008370/python-2d-contour-plot-from-3-lists-x-y-and-rho radial basis function is often a good choice. If you have millions of points this implementation will be inefficient but as a starting..
http://stackoverflow.com/questions/911655/gnuplot-vs-matplotlib 100 000's of points I'm planning on scaling this up to millions. Should I expect problems How well does Matplotlib handle this.. project. NASA uses it for some stuff. I've plotted tens of millions of points in Matplotlib and it still looked beautiful and responded..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python of input this isn't a big problem but when you are reading millions of lines the performance penalty is significant. Fortunately..
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