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python Programming Glossary: resWhat is different between all these OpenCV Python interfaces? http://stackoverflow.com/questions/10417108/what-is-different-between-all-these-opencv-python-interfaces started working on cv . In this all OpenCV data types are preserved as such. For example when loaded images are of format cvMat.. like cvSetImageROI . If you find contours cvSeq structures are returned which is not so good to work with compared to Python.. two images there isn't a need to call any function just do res img1 img2 . But NumPy addition is a modulo operation for uint8..
How do you send a HEAD HTTP request in Python? http://stackoverflow.com/questions/107405/how-do-you-send-a-head-http-request-in-python www.google.com conn.request HEAD index.html res conn.getresponse print res.status res.reason 200 OK print res.getheaders.. www.google.com conn.request HEAD index.html res conn.getresponse print res.status res.reason 200 OK print res.getheaders.. conn.request HEAD index.html res conn.getresponse print res.status res.reason 200 OK print res.getheaders 'content length'..
Python normal arguments vs. keyword arguments http://stackoverflow.com/questions/1419046/python-normal-arguments-vs-keyword-arguments each def func args kwargs args positional kwargs keyword res calc 1 3 spam eggs 1 3 positional spam eggs keyword I was talking..
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... or version of Python. Below is a script which compares a number of implementations ambi_sieve_plain rwh_primes rwh_primes1.. sundaram3 sieve_wheel_30 ambi_sieve requires numpy primesfrom3to requires numpy primesfrom2to requires numpy..
Simple Python Challenge: Fastest Bitwise XOR on Data Buffers http://stackoverflow.com/questions/2119761/simple-python-challenge-fastest-bitwise-xor-on-data-buffers the type for data buffers in python. Return the resultant value as a str . Do this as fast as possible. The inputs.. n while in1 end out in1 ^ in2 in1 in2 out code2 PyObject res PyString_FromStringAndSize NULL real_size const ssize_t tail.. real_size const ssize_t tail ssize_t PyString_AS_STRING res ALIGNMENT const ssize_t head ALIGNMENT tail ALIGNMENT memxor..
Is there any way to kill a Thread in Python? http://stackoverflow.com/questions/323972/is-there-any-way-to-kill-a-thread-in-python a running thread without setting checking any flags semaphores etc. python multithreading share improve this question .. of the following cases the thread is holding a critical resource that must be closed properly the thread has created several.. want to interrupt it. The following code allows with some restrictions to raise an Exception in a python thread def _async_raise..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code score def getneighbors formation igap formation.index gap res # AB_CD A_BCD ABC_D B_ACD ABD_C def genn i j temp list formation.. genn i j temp list formation temp i temp j temp j temp i res.append temp if igap 0 genn igap igap 1 if igap 1 genn igap igap.. igap 1 if igap len formation 2 genn igap igap 2 return res class node def __init__ self a g p self.arrangement a self.g..
http://stackoverflow.com/questions/8692/how-to-use-xpath-in-python RPMs are available that ease some of this pain. Manual resource handling. Note in the sample below the calls to freeDoc.. doc libxml2.parseFile tst.xml ctxt doc.xpathNewContext res ctxt.xpathEval if len res 2 print xpath query wrong node set.. tst.xml ctxt doc.xpathNewContext res ctxt.xpathEval if len res 2 print xpath query wrong node set size sys.exit 1 if res 0..
Python: simple list merging based on intersections http://stackoverflow.com/questions/9110837/python-simple-list-merging-based-on-intersections to merge lists having at least one common element. So the results only for the given part will be as follows # 0 0 1 3 4.. # corrected i 1 lst list s for s in sts return lst # The result is # merge lsts 0 1 3 4 5 10 11 16 8 2 # Update 2 To.. is completely different approach by the way it seems interesting . The testing procedure for all of these could be really..
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