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python Programming Glossary: resultsWhat can you use Python generator functions for? http://stackoverflow.com/questions/102535/what-can-you-use-python-generator-functions-for Generators are good for calculating large sets of results in particular calculations involving loops themselves where.. where you don't know if you are going to need all results or where you don't want to allocate the memory for all results.. or where you don't want to allocate the memory for all results at the same time. Or for situations where the generator uses..
http://stackoverflow.com/questions/13058458/python-list-index some_list i 1 j 1 1 for i in range 4 print some_list i The results I expected are 0 0 0 0 0 1 1 1 0 1 1 1 0 1 1 1 But the actual.. are 0 0 0 0 0 1 1 1 0 1 1 1 0 1 1 1 But the actual results from Python are 0 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1 What's going..
What is memoization and how can I use it in Python? http://stackoverflow.com/questions/1988804/what-is-memoization-and-how-can-i-use-it-in-python to remembering memoization memorandum to be remembered results of method calls based on the method inputs and then returning.. result again. You can think of it as a cache for method results. For further details see page 365 of Cormen et al. Introduction..
Fastest way to list all primes below N in python http://stackoverflow.com/questions/2068372/fastest-way-to-list-all-primes-below-n-in-python primes share improve this question Warning timeit results may vary due to differences in hardware or version of Python... def test f1 f2 num print 'Testing f1 and f2 return same results'.format f1 f1.func_name f2 f2.func_name if not all a b for a..
What do (lambda) function closures capture in Python? http://stackoverflow.com/questions/2295290/what-do-lambda-function-closures-capture-in-python All lambda functions refer to the last value of i 3 which results in adders1 returning 6. Which me the following what does the..
Best way to strip punctuation from a string in Python http://stackoverflow.com/questions/265960/best-way-to-strip-punctuation-from-a-string-in-python s test_repl as f' .timeit 1000000 This gives the following results sets 19.8566138744 regex 6.86155414581 translate 2.12455511093..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python and looking around on Stack Overflow I got the desired results with a reduce statement reduce list.__add__ map lambda x list..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code the in operator and keep an parallel list around for your results. I tried a simple implementation of this including aaronasterling's..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension iterating once. If you want to store and use the generated results then you're probably better off with a list comprehension. Since..
Python rounding error with float numbers http://stackoverflow.com/questions/5997027/python-rounding-error-with-float-numbers for varying the parameters of a simulation I realized the results with delta 0.29 and delta 0.58 were missing. On investigation..
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 LPS 2 n .format count delta_sec lines_per_sec Here are my results cat test_lines . readline_test_cpp Saw 5570000 lines in 9 seconds... false Immediately above my original while loop above results in code that runs faster than Python. New performance comparison.. ferror stdin perror Error reading stdin. Now here are the results using an even larger file 100M lines ~3.4GB on a fast server..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python cv2.KNearest retval model.train samples responses retval results neigh_resp dists model.find_nearest samples k 10 print results.ravel.. neigh_resp dists model.find_nearest samples k 10 print results.ravel It gave me an array of size 20000 i don't understand what.. How to build that file from my own data set 2 What does results.reval denote 3 How we can write a simple digit recognition tool..
Python faster than compiled Haskell? http://stackoverflow.com/questions/10357663/python-faster-than-compiled-haskell And I time those two with time . quick time python qs.py Results Haskell real 0m10.820s user 0m10.656s sys 0m0.154s Python real..
http://stackoverflow.com/questions/11150239/python-natural-sorting c in re.split ' 0 9 ' key return sorted l key alphanum_key Results for your data PresserInc 1.jpg PresserInc 1_10.jpg PresserInc..
Having more than one parameter with def in python http://stackoverflow.com/questions/11550285/having-more-than-one-parameter-with-def-in-python arg in args print another arg arg test_var_args 1 two 3 Results formal arg 1 another arg two another arg 3 and using kwargs.. key kwargs key test_var_kwargs farg 1 myarg2 two myarg3 3 Results formal arg 1 another keyword arg myarg2 two another keyword..
Comparing image in url to image in filesystem in python http://stackoverflow.com/questions/13875989/comparing-image-in-url-to-image-in-filesystem-in-python f quality 50 g g2 JPEG 1 quality of f h lightened g2. Results rounded NRMSE f g1 0.96 NRMSE f g2 0.88 NRMSE f h 0.63 SSIM..
Mass string replace in python? http://stackoverflow.com/questions/1919096/mass-string-replace-in-python map repl subs 1 print ' 30s' 'Andrew Y fixed dict' time t Results in Python 2.6 Running 10000 times with string length 490 and.. myparts print ' 30s' 'gnibbler fixed variable dict' time t Results Running 10000 times with string length 9491 and random inserts..
Python soap using soaplib (server) and suds (client) http://stackoverflow.com/questions/1992239/python-soap-using-soaplib-server-and-suds-client 7789 ' HelloWorldService print client.say_hello Dave 5 Results 'Hello Dave' 'Hello Dave' 'Hello Dave' 'Hello Dave' 'Hello Dave'.. wsdl' client1 Client url client1.service.say_hello Dave 5 Results Unhandled exception while debugging... Traceback most recent..
MySQL “incorrect string value” error when save unicode string in Django http://stackoverflow.com/questions/2108824/mysql-incorrect-string-value-error-when-save-unicode-string-in-django has utf 8 charset with utf8_general_ci collation. Results of UPDATE command It didn't raise any error when updating above..
Google AppEngine: How to fetch more than 1000? http://stackoverflow.com/questions/264154/google-appengine-how-to-fetch-more-than-1000 1.3.6 released Aug 17 2010 you CAN From the changelog Results of datastore count queries and offsets for all datastore queries..
Python Glade could not create GladeXML Object http://stackoverflow.com/questions/2668618/python-glade-could-not-create-gladexml-object visible True property child object class GtkLabel id labelResults property name visible True property property name label translatable.. True property property name label translatable yes Number Results property object packing property name expand False property.. child child object class GtkSpinButton id spinbuttonResults property name visible True property property name can_focus..
Python - Create a list with initial capacity http://stackoverflow.com/questions/311775/python-create-a-list-with-initial-capacity some unique object d i result i message return result Results . evaluate each function 144 times and average the duration..
http://stackoverflow.com/questions/3684484/peak-detection-in-a-2d-array Here's a version that can be loaded with np.loadtxt Results So I tried @jextee's solution see the results below . As you..
http://stackoverflow.com/questions/4628290/pairs-from-single-list 1.25586485863 0.00222492218018 1.23795199394 1.23572707176 Results so far Most pythonic and very efficient pairs izip t 2 t 1 2..
Detecting thresholds in HSV color space (from RGB) using Python / PIL http://stackoverflow.com/questions/4890373/detecting-thresholds-in-hsv-color-space-from-rgb-using-python-pil maybe bugs. Please let me know if you find any. cheers. Results starting with this colorwheel I get these results Hue Value..
Fast tensor rotation with NumPy http://stackoverflow.com/questions/4962606/fast-tensor-rotation-with-numpy 7 0 2 4 6 .reshape 81 81 T.reshape 81 1 .reshape 3 3 3 3 Results of timeit on my home laptop 500 iterations Your original code..
Benchmarking (python vs. c++ using BLAS) and (numpy) http://stackoverflow.com/questions/7596612/benchmarking-python-vs-c-using-blas-and-numpy double start.tv_sec factor double start.tv_usec factor Results The result is shown in the plot below Questions Do you think..
Why is splitting a string slower in C++ than Python? http://stackoverflow.com/questions/9378500/why-is-splitting-a-string-slower-in-c-than-python each look similar to this foo.bar 127.0.0.1 home.foo.bar Results usr bin time cat test_lines_double . split.py 15.61 real 0.01..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on questions regarding robust detection algorithms. Quick Results Some sample images all the images apart from yours are downloaded..
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