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python Programming Glossary: turnWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python name ... if name 'foo' ... class Foo object ... pass ... return Foo # return the class not an instance ... else ... class Bar.. 'foo' ... class Foo object ... pass ... return Foo # return the class not an instance ... else ... class Bar object ..... an instance ... else ... class Bar object ... pass ... return Bar ... MyClass choose_class 'foo' print MyClass # the function..
Source interface with Python and urllib2 http://stackoverflow.com/questions/1150332/source-interface-with-python-and-urllib2 in httplib delegates to socket.create_connection which in turn gives you no hook whatsoever between the creation of the socket.. a k sock true_socket a k sock.bind sourceIP 0 return sock socket.socket bound_socket Depending on your exact needs..
Activate a virtualenv via fabric as deploy user http://stackoverflow.com/questions/1180411/activate-a-virtualenv-via-fabric-as-deploy-user user I want to run my fabric script locally which will in turn log into my server switch user to deploy activate the projects..
What is the simplest way to SSH using Python? http://stackoverflow.com/questions/1233655/what-is-the-simplest-way-to-ssh-using-python tried it but this pysftp module might help which in turn uses paramiko. I believe everything is client side. The interesting..
Is there a good Python library that can parse C++? http://stackoverflow.com/questions/1444961/is-there-a-good-python-library-that-can-parse-c a good Python library that can parse C Google didn't turn up anything that seemed relevant. I have a bunch of existing..
How to download any(!) webpage with correct charset in python? http://stackoverflow.com/questions/1495627/how-to-download-any-webpage-with-correct-charset-in-python Soup tries the following encodings in order of priority to turn your document into Unicode An encoding you pass in as the fromEncoding..
Useful code which uses reduce() in python http://stackoverflow.com/questions/15995/useful-code-which-uses-reduce-in-python a lot... Here's some cute usages Flatten a list Goal turn 1 2 3 4 5 6 7 8 into 1 2 3 4 5 6 7 8 . reduce list.__add__ 1.. 1 2 3 4 5 6 7 8 List of digits to a number Goal turn 1 2 3 4 5 6 7 8 into 12345678 . Ugly slow way int .join map..
Remove whitespace in Python using string.whitespace http://stackoverflow.com/questions/1898656/remove-whitespace-in-python-using-string-whitespace ' t n ... etc for regex For example it should be able to turn Please n don't t hurt x0b me. into Please don't hurt me. I'd..
Python: removing duplicates from a list of lists http://stackoverflow.com/questions/2213923/python-removing-duplicates-from-a-list-of-lists and can't make set of lists. Only of tuples. So I can turn all lists to tuples then use set and back to lists. But this.. approach because it's so much easier that it offers good returns on efforts. But sometimes essentially for tragically crucial.. 2 3 4 def doset k map map list list set set tuple tuple return map list set map tuple k def dosort k sorted sorted xrange xrange..
How do I unescape HTML entities in a string in Python 3.1? http://stackoverflow.com/questions/2360598/how-do-i-unescape-html-entities-in-a-string-in-python-3-1 I would be very grateful. So to be clear I need to turn strings like this Suzy amp John into a string like this Suzy..
Weighted random selection with and without replacement http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement through bit operations to avoid a binary search. It will turn out that done correctly we will need to only store two items.. the split. In this case the value is 0.5 and 0.5 0.6 so return a. Here is some code and another explanation but unfortunately..
Should wildcard import be avoided? http://stackoverflow.com/questions/3615125/should-wildcard-import-be-avoided hundreds of Unused import warnings. I'm hesitant to just turn them off because there might be other unused imports that are..
In Python, how do I read the exif data for an image? http://stackoverflow.com/questions/4764932/in-python-how-do-i-read-the-exif-data-for-an-image I read the exif data for an image I'm using PIL. How do I turn the EXIF data into a dictionary of stuff python image python..
http://stackoverflow.com/questions/4937491/matrix-transpose-in-python this 2D array as columns and rows I would like the rows to turn into columns and columns into rows. I made this so far but it..
In Python, how do I get the path and name of the file that is currently executing? http://stackoverflow.com/questions/50499/in-python-how-do-i-get-the-path-and-name-of-the-file-that-is-currently-executin files. Using execfile script_1.py calls script_2.py. In turn script_2.py calls script_3.py. How can I get the file name and.. that info as args from script_2.py Executing os.getcwd returns the original starting script's filepath not the current file's...
Django Passing Custom Form Parameters to Formset http://stackoverflow.com/questions/622982/django-passing-custom-form-parameters-to-formset This works as intended. My problem is that I now want to turn this single form into a formset. What I can't figure out is.. self.form to create instances of the form. But the return value of curry is a function and when a function object is assigned..
How do I point easy_install to vcvarsall.bat? http://stackoverflow.com/questions/6551724/how-do-i-point-easy-install-to-vcvarsall-bat msvc9compiler.py standard module. Python checks in turn if any of folders saved in the registry under keys HKEY_LOCAL_MACHINE..
Creating a singleton in python http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python not in instances instances class_ class_ args kwargs return instances class_ return getinstance @singleton class MyClass.. class_ class_ args kwargs return instances class_ return getinstance @singleton class MyClass BaseClass pass Pros Decorators.. class_._instance object.__new__ class_ args kwargs return class_._instance class MyClass Singleton BaseClass pass Pros..
Tips on upgrading to python 3.0? http://stackoverflow.com/questions/1072028/tips-on-upgrading-to-python-3-0 2. x 1 . Make sure all your tests pass. Still using 2.6 Turn on the 3 command line switch. This enables warnings about features..
Python - can't get the list inside the function http://stackoverflow.com/questions/13455761/python-cant-get-the-list-inside-the-function collection UserString.MutableString collection # Turn the string to mutable if len collection 0 return answer if collection..
Heatmap in matplotlib with pcolor? http://stackoverflow.com/questions/14391959/heatmap-in-matplotlib-with-pcolor rebounds' 'Total rebounds' 'Assists' 'Steals' 'Blocks' 'Turnover' 'Personal foul' # note I could have used nba_sort.columns.. False # rotate the plt.xticks rotation 90 ax.grid False # Turn off all the ticks ax plt.gca for t in ax.xaxis.get_major_ticks..
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 changes are Use a set for b_li which makes lookups faster. Turn s into a tuple as there is no need to store unique first and..
Python C program subprocess hangs at “for line in iter” http://stackoverflow.com/questions/20503671/python-c-program-subprocess-hangs-at-for-line-in-iter it to exit There are also other utilities available see Turn off buffering in pipe . Or use pseudo TTY To trick the subprocess..
http://stackoverflow.com/questions/2119067/in-wxpython-what-is-the-standard-process-of-making-an-application-slightly-more on the GUI side is simple mostly a set of reminder screens Turn on the scanner Turn on the printer etc and background actions.. mostly a set of reminder screens Turn on the scanner Turn on the printer etc and background actions in Python either in..
running jython bytecode using java http://stackoverflow.com/questions/2583192/running-jython-bytecode-using-java the base Python code. The current thinking runs as follows Turn Python classes into Java classes without a Java interface or..
Turn a string into a valid filename in Python http://stackoverflow.com/questions/295135/turn-a-string-into-a-valid-filename-in-python a string into a valid filename in Python I have a string that..
Simulating a 'local static' variable in python http://stackoverflow.com/questions/460586/simulating-a-local-static-variable-in-python Parser python share improve this question Turn it into a callable object since that's what it really is. class..
Python closure: Write to variable in parent scope http://stackoverflow.com/questions/4851463/python-closure-write-to-variable-in-parent-scope variable scope python 2.x share improve this question Turn num_converted into a single element array. num_converted 0 def..
Turn off a warning in sqlalchemy http://stackoverflow.com/questions/5225780/turn-off-a-warning-in-sqlalchemy off a warning in sqlalchemy I'm using sqlalchemy with reflection..
How to detect motion between two PIL images? (wxPython webcam integration example included) http://stackoverflow.com/questions/5524179/how-to-detect-motion-between-two-pil-images-wxpython-webcam-integration-exampl 1 initVideo False self.StartButton wx.ToggleButton self 1 Turn On self.ColourButton wx.Button self 1 Change Background szr..
http://stackoverflow.com/questions/6823316/python-on-iis-how and Features... and then on the left hand side Turn Windows Features on or Off. Make sure CGI is installed under..
Is there a function to make scatterplot matrices in matplotlib? http://stackoverflow.com/questions/7941207/is-there-a-function-to-make-scatterplot-matrices-in-matplotlib 0.5 xycoords 'axes fraction' ha 'center' va 'center' # Turn on the proper x or y axes ticks. for i j in zip range numvars..
How to dynamically compose an OR query filter in Django? [duplicate] http://stackoverflow.com/questions/852404/how-to-dynamically-compose-an-or-query-filter-in-django You could chain your queries as follows values 1 2 3 # Turn list of values into list of Q objects queries Q pk value for..
How to dynamically compose an OR query filter in Django? http://stackoverflow.com/questions/852414/how-to-dynamically-compose-an-or-query-filter-in-django You could chain your queries as follows values 1 2 3 # Turn list of values into list of Q objects queries Q pk value for..
What is the best way to get a semi long unique id (non sequential) key for Database objects http://stackoverflow.com/questions/9877524/what-is-the-best-way-to-get-a-semi-long-unique-id-non-sequential-key-for-datab encoding for your integers def int_str val keyspace Turn a positive integer into a string. assert val 0 out while val.. out keyspace digit return out 1 def str_int val keyspace Turn a string into a positive integer. out 0 for c in val out out..
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