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python Programming Glossary: foldIterate over pairs in a list (circular fashion) in Python http://stackoverflow.com/questions/1257413/iterate-over-pairs-in-a-list-circular-fashion-in-python out there I haven't heard about also a more general n fold with triplets quartets etc. instead of pairs version could be..
Shortest hash in python to name cache files http://stackoverflow.com/questions/1303021/shortest-hash-in-python-to-name-cache-files objects you'd want 40 bits or so 7 or 8 characters you can fold xor don't truncate a sha256 down to a long with a reasonable..
How does sklearn.svm.svc's function predict_proba() work internally? http://stackoverflow.com/questions/15111408/how-does-sklearn-svm-svcs-function-predict-proba-work-internally this model from overfitting it uses an internal five fold cross validation meaning that training SVMs with probability..
How to cleanly keep below 80-char width with long strings? http://stackoverflow.com/questions/15664101/how-to-cleanly-keep-below-80-char-width-with-long-strings 0 to 29 29 LOAD_CONST 0 None 32 RETURN_VALUE Python does fold binary operations on constants at compile time so etc. in the..
Django auto_now and auto_now_add http://stackoverflow.com/questions/1737017/django-auto-now-and-auto-now-add save vs. relying on these field arguments is two fold The aforementioned ups and downs with their reliability. These..
Python: Using vars() to assign a string to a variable http://stackoverflow.com/questions/2320945/python-using-vars-to-assign-a-string-to-a-variable to locals or globals .. So my question is at least two fold 1.What exactly does vars or in particular vars x y do 2.What..
Python: urllib/urllib2/httplib confusion http://stackoverflow.com/questions/301924/python-urllib-urllib2-httplib-confusion is that urllib2 doesn't follow the redirect. You need to fold in an instance of HTTPRedirectHandler that will catch and follow..
How to find XML Elements via XPath in Python in a namespace-agnostic way? http://stackoverflow.com/questions/5572247/how-to-find-xml-elements-via-xpath-in-python-in-a-namespace-agnostic-way element plus handle any other XPath syntax you want to fold into the expression import lxml.etree def xpath_ns tree expr..
numpy float: 10x slower than builtin in arithmetic operations? http://stackoverflow.com/questions/5956783/numpy-float-10x-slower-than-builtin-in-arithmetic-operations problem lies. With the new code it would seem I see a ten fold performance hit from using numpy data types from datetime import..
Python: why are * and ** faster than / and sqrt()? http://stackoverflow.com/questions/8068019/python-why-are-and-faster-than-and-sqrt unexpected reason for your results is that Python seems to fold constant expressions involving floating point multiplication.. call etc . If you eliminate the effect of constant folding there's little to separate multiplication and division In.. of 3 181 ns per loop edit 2011 11 16 Constant expression folding is done by Python's peephole optimizer. The source code peephole.c..
simple thread management within python classes http://stackoverflow.com/questions/8454140/simple-thread-management-within-python-classes else will make it easier. what i want to know is two fold how should i call this class elegantly and how should i stop..
fastest SVM implementation usable in python http://stackoverflow.com/questions/9299346/fastest-svm-implementation-usable-in-python 650 features. Each run takes about a minute. But with a 5 fold cross validation grid search using a coarse to fine search it's..
Using itertools.product and want to seed a value http://stackoverflow.com/questions/9864809/using-itertools-product-and-want-to-seed-a-value itertools import count imap def make_product values def fold n l v n m divmod n len v return n l v m def product n n l reduce.. n m divmod n len v return n l v m def product n n l reduce fold values n if n 0 raise StopIteration return tuple l return product..
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