python Programming Glossary: defineWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python reason to complicate things. type accepts a dictionary to define the attributes of the class. So class Foo object ... bar True.. Eventually you'll want to add methods to your class. Just define a function with the proper signature and assign it as an attribute... Metaclasses are the 'stuff' that creates classes. You define classes in order to create objects right But we learned that..
The meaning of a single- and a double-underscore before an object name in Python http://stackoverflow.com/questions/1301346/the-meaning-of-a-single-and-a-double-underscore-before-an-object-name-in-python syntactic position of the identifier so it can be used to define class private instance and class variables methods variables.. Name mangling is intended to give classes an easy way to define 𦑩rivate instance variables and methods without having to worry.. methods without having to worry about instance variables defined by derived classes or mucking with instance variables by code..
What is the difference between @staticmethod and @classmethod in Python? http://stackoverflow.com/questions/136097/what-is-the-difference-between-staticmethod-and-classmethod-in-python can also call class_foo using the class. In fact if you define something to be a classmethod it is probably because you intend..
Is False == 0 and True == 1 in Python an implementation detail or is it guaranteed by the language? http://stackoverflow.com/questions/2764017/is-false-0-and-true-1-in-python-an-implementation-detail-or-is-it-guarante list indexing only works with integers or objects that define a __index__ method thanks mark dickinson . Edit It is true of..
Python: Once and for all. What does the Star operator mean in Python? [duplicate] http://stackoverflow.com/questions/2921847/python-once-and-for-all-what-does-the-star-operator-mean-in-python Lists of the Python documentation. Additionally you can define functions to take x and y arguments this allows a function to..
Calling a function from a string with the function's name in Python http://stackoverflow.com/questions/3061/calling-a-function-from-a-string-with-the-functions-name-in-python use eval . I figured out how to do it by using eval to define a temp function that returns the result of that function call..
Is there a simple, elegant way to define Singletons in Python? [closed] http://stackoverflow.com/questions/31875/is-there-a-simple-elegant-way-to-define-singletons-in-python there a simple elegant way to define Singletons in Python closed There seem to be many ways to define.. Singletons in Python closed There seem to be many ways to define Singletons in Python. Is there a consensus opinion on StackOverflow..
Why use pip over easy_install? http://stackoverflow.com/questions/3220404/why-use-pip-over-easy-install Mercurial and Bazaar Uninstallation of packages. Simple to define fixed sets of requirements and reliably reproduce a set of packages...
Suggestions for a Cron like scheduler in Python? http://stackoverflow.com/questions/373335/suggestions-for-a-cron-like-scheduler-in-python syntax to specify your crontab. For example suppose we define an Event class as below from datetime import datetime timedelta.. for names of weeks and months The CronTab class would be defined as simply sleeping in minute increments and calling check on..
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do of the code found in it. Before executing the code it will define a few special variables. For example if the python interpreter..
Python decimal range() step value http://stackoverflow.com/questions/477486/python-decimal-range-step-value question Building on 'xrange start stop step ' you can define a generator that accepts and produces any type you choose stick..
Differences between distribute, distutils, setuptools and distutils2? http://stackoverflow.com/questions/6344076/differences-between-distribute-distutils-setuptools-and-distutils2 䏭 not published yet so here are excerpts that should help define things. Distutils is the standard tool used for packaging. It..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields on a multi tenanted application in which some users can define their own data fields via the admin to collect additional data.. database. Then the various concrete data fields can be defined as class UserCustomDataField CustomDataField pass class UserCustomDataValue..
http://stackoverflow.com/questions/11507028/fit-a-gaussian-function import curve_fit import matplotlib.pyplot as plt # Define some test data which is close to Gaussian data numpy.random.normal.. data density True bin_centres bin_edges 1 bin_edges 1 2 # Define model function to be used to fit to the data above def gauss..
SQLAlchemy and django, is it production ready? http://stackoverflow.com/questions/1154331/sqlalchemy-and-django-is-it-production-ready sqlalchemy share improve this question What I would do Define the schema in Django orm let it write the db via syncdb. You..
gotchas where Numpy differs from straight python? http://stackoverflow.com/questions/1322380/gotchas-where-numpy-differs-from-straight-python operator is overloaded to distribute across the array. Define a list and an array l range 10 l 0 1 2 3 4 5 6 7 8 9 import..
Reverse Geocoding Without Web Access http://stackoverflow.com/questions/1425149/reverse-geocoding-without-web-access on the latitude and then the longitude or vice versa . Define polygons for each of the states and do some sort of calculation..
http://stackoverflow.com/questions/15062844/maximum-sum-sublist . It takes O 1 space and O n time this can't be beat Define A to be the input array zero indexed and B i to be the maximum..
How to create a generator/iterator with the Python C API? http://stackoverflow.com/questions/1815812/how-to-create-a-generator-iterator-with-the-python-c-api #include Python Python.h #include Python structmember.h Define a new object class Sequence. typedef struct PyObject_HEAD size_t.. n Returns iterator of range 0 sequence.max . NULL Sentinel Define new object type PyTypeObject Sequence_Type PyObject_HEAD_INIT.. return PyObject generator End of Generator definition. Define a new object class Sequence. typedef struct PyObject_HEAD size_t..
How to add clickable links to a field in Django admin? http://stackoverflow.com/questions/1949248/how-to-add-clickable-links-to-a-field-in-django-admin Thank you. python django share improve this question Define a custom method in your LawyerAdmin class that returns the link..
Using Django time/date widgets in custom form http://stackoverflow.com/questions/38601/using-django-time-date-widgets-in-custom-form this question What you have to do to make this work Define your own ModelForm subclass for your model best to put it in..
Define css class in django Forms http://stackoverflow.com/questions/401025/define-css-class-in-django-forms css class in django Forms Assume I have a form class SampleClass..
Is there a Google Insights API? http://stackoverflow.com/questions/4440139/is-there-a-google-insights-api sgmllib import SGMLParser import urllib2 import urllib # Define the class that will parse the suggestion XML class PullSuggestions..
How can I specify a database for Django Tests to use instead of having it build it everytime? http://stackoverflow.com/questions/4606756/how-can-i-specify-a-database-for-django-tests-to-use-instead-of-having-it-build improve this question It's possible here is a way 1 Define your own test runner look here to see how. 2 For your custom..
PyAudio working, but spits out error messages each time http://stackoverflow.com/questions/7088672/pyaudio-working-but-spits-out-error-messages-each-time err const char fmt ... __attribute__ format printf 5 6 # Define our error handler type ERROR_HANDLER_FUNC CFUNCTYPE None c_char_p..
matplotlib: adding second axes() with transparent background? http://stackoverflow.com/questions/7761778/matplotlib-adding-second-axes-with-transparent-background adding second axes with transparent background Define data x np.linspace 0 2 np.pi 100 y 2 np.sin x Plot fig plt.figure..
Asynchronous Requests with Python requests http://stackoverflow.com/questions/9110593/asynchronous-requests-with-python-requests multiple tasks with async.map asynchronously you have to Define a function for what you want to do with each object your task..
Python: Sending Multipart html emails which contain embedded images http://stackoverflow.com/questions/920910/python-sending-multipart-html-emails-which-contain-embedded-images import MIMEText from email.MIMEImage import MIMEImage # Define these once use them twice strFrom 'from@example.com' strTo 'to@example.com'.. open 'test.jpg' 'rb' msgImage MIMEImage fp.read fp.close # Define the image's ID as referenced above msgImage.add_header 'Content..
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