¡@
python Programming Glossary: setsCommon pitfalls in Python [duplicate] http://stackoverflow.com/questions/1011431/common-pitfalls-in-python foo will accept any object. Bar will accept strings tuples sets lists and much more. Cheap DRY Don't mix spaces and tabs Just..
What can you use Python generator functions for? http://stackoverflow.com/questions/102535/what-can-you-use-python-generator-functions-for is requested. Generators are good for calculating large sets of results in particular calculations involving loops themselves..
“Large data” work flows using pandas http://stackoverflow.com/questions/14262433/large-data-work-flows-using-pandas but I currently lack an out of core workflow for large datasets. I'm not talking about big data that requires a distributed.. My first thought is to use HDFStore to hold large datasets on disk and pull only the pieces I need into dataframes for.. in memory. In order to use Pandas I would like to read subsets of this data usually just a few columns at a time that can fit..
Differences between isinstance() and type() in python http://stackoverflow.com/questions/1549801/differences-between-isinstance-and-type-in-python i.e. ones you can't loop on one way all containers lists sets dicts ... in another way and basestring plus isinstance helps..
Does Python have an ordered set? http://stackoverflow.com/questions/1653970/does-python-have-an-ordered-set an ordered dictionary what about an ordered set python sets share improve this question There is an ordered set recipe.. similar can easily be added @staticmethod def union sets union OrderedSet union.union sets return union def union self.. @staticmethod def union sets union OrderedSet union.union sets return union def union self sets for set in sets self set ..
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 for c in string.punctuation s s.replace c return s print sets timeit.Timer 'f s ' 'from __main__ import s test_set as f' .timeit.. as f' .timeit 1000000 This gives the following results sets 19.8566138744 regex 6.86155414581 translate 2.12455511093 replace..
Why use pip over easy_install? http://stackoverflow.com/questions/3220404/why-use-pip-over-easy-install Bazaar Uninstallation of packages. Simple to define fixed sets of requirements and reliably reproduce a set of packages. ..
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do running that module the source file as the main program it sets the special __name__ variable to have a value __main__ . If..
Setting the correct encoding when piping stdout in python http://stackoverflow.com/questions/492483/setting-the-correct-encoding-when-piping-stdout-in-python the python interpreter gets confused about encoding and sets it to None. This means a program like this # coding utf 8 print..
http://stackoverflow.com/questions/890128/python-lambda-why Example mult3 filter lambda x x 3 0 1 2 3 4 5 6 7 8 9 sets mult3 to 3 6 9 those elements of the original list that are..
Python: simple list merging based on intersections http://stackoverflow.com/questions/9110837/python-simple-list-merging-based-on-intersections to think about I do the job now by converting lists to sets and iterating for intersections but it is slow Furthermore I.. now Niklas 's method is faster and the answer for simple sets is correct of course. However how can I be sure that it works.. share improve this question My attempt def merge lsts sets set lst for lst in lsts if lst merged 1 while merged merged..
http://stackoverflow.com/questions/12719600/count-vowels-from-raw-input 'u' # True 'a' in 'aeiou' # Also True Some other comments Sets The in operator is most efficient when used with a set which..
Obtain File size with os.path.getsize() in Python 2.7.5 http://stackoverflow.com/questions/17410628/obtain-file-size-with-os-path-getsize-in-python-2-7-5 Positively Must Know About Unicode and Character Sets No Excuses by Joel Spolsky The Python Unicode HOWTO Pragmatic..
Python's standard library - is there a module for balanced binary tree? http://stackoverflow.com/questions/2298165/pythons-standard-library-is-there-a-module-for-balanced-binary-tree and you explained why lists are too algorithmically slow. Sets and dicts are implemented as hash tables which have O 1 lookup...
http://stackoverflow.com/questions/2339735/fabric-password . In particular and I quote p PASSWORD password PASSWORD Sets env.password to the given string it will then be used as the..
In what order should the Python concepts be explained to absolute beginners? [closed] http://stackoverflow.com/questions/2439638/in-what-order-should-the-python-concepts-be-explained-to-absolute-beginners need them focused on the main concepts. Don't show sets. Sets are very useful but rarely used. Encourage them to code at home..
http://stackoverflow.com/questions/2831212/python-sets-vs-lists Sets vs Lists In Python which data structure is more efficient speedy.. It depends on what you are intending to do with it. Sets are significantly faster when it comes to determining if an..
Character Sets explained for Dummies! [closed] http://stackoverflow.com/questions/3049090/character-sets-explained-for-dummies Sets explained for Dummies closed I don't think i fully understand..
Python Check if all of the following items is in a list http://stackoverflow.com/questions/3931541/python-check-if-all-of-the-following-items-is-in-a-list l I find it a bit more readable but it may be over kill. Sets are particularly useful to compute union intersection differences..
How to get transparent background in window with PyGTK and PyCairo? http://stackoverflow.com/questions/4889045/how-to-get-transparent-background-in-window-with-pygtk-and-pycairo pi def expose widget event cr widget.window.cairo_create # Sets the operator to clear which deletes everything below where an..
Are there any declaration keywords in Python? http://stackoverflow.com/questions/571514/are-there-any-declaration-keywords-in-python you know if this statement x 5 Creates a new variable. or Sets an existing one. python variables share improve this question..
How can I create a Set of Sets in Python? http://stackoverflow.com/questions/5931291/how-can-i-create-a-set-of-sets-in-python can I create a Set of Sets in Python I am fairly new to Python. I have done some looking..
http://stackoverflow.com/questions/7782721/java-raw-audio-output getFramesPerWavelengthSlider return framesPerWavelength Sets the sample rate to one of the four allowable rates. Is ignored.. case 22050 sampleRate.setSelectedIndex 3 break default Sets label to current frequency settings. public void setFrequencyLabel..
python set changes element order? http://stackoverflow.com/questions/9792664/python-set-changes-element-order does not allow fast membership tests on a and the result. Sets allow fast membership tests and lists keep order. If you need..
|