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python Programming Glossary: overrideWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python object is the class and we want to customize it # so we override __new__ # you can do some stuff in __init__ too if you wish.. this is not really OOP. We call type directly and we don't override call the parent __new__ . Let's do it class UpperAttrMetaclass.. You can use OOP. Metaclass can inherit from metaclass override parent methods. Metaclasses can even use metaclasses. You can..
How do I access the request object or any other variable in a form's clean() method? http://stackoverflow.com/questions/1057252/how-do-i-access-the-request-object-or-any-other-variable-in-a-forms-clean-met no reason to do it this way. A much better way is to override the form's __init__ method to take an extra keyword argument..
Special (magic) methods in Python [closed] http://stackoverflow.com/questions/1090620/special-magic-methods-in-python __xxx__ methods that is. I'm often looking for a way to override something which I know is possible to do through one of these..
Why can't Python find shared objects that are in directories in sys.path? http://stackoverflow.com/questions/1099981/why-cant-python-find-shared-objects-that-are-in-directories-in-sys-path LD_PRELOAD lists shared libraries with functions that override the standard set just as etc ld.so.preload does. These are implemented..
How can I login to django using tastypie http://stackoverflow.com/questions/11770501/how-can-i-login-to-django-using-tastypie can I login to django using tastypie I'm trying to override is_authenticated in my custom authentication. I have something.. allowed_methods 'get' 'post' resource_name 'user' def override_urls self return url r ^ P resource_name s login s self._meta.resource_name..
Using property() on classmethods http://stackoverflow.com/questions/128573/using-property-on-classmethods instead of as an instance attribute C .x . If you want to override the __get__ operation for properties when used as a class attribute..
Python __str__ versus __unicode__ http://stackoverflow.com/questions/1307014/python-str-versus-unicode implement __str__ versus __unicode__ . I've seen classes override __unicode__ more frequently than __str__ but it doesn't appear..
Why is the Borg pattern better than the Singleton pattern in Python http://stackoverflow.com/questions/1318406/why-is-the-borg-pattern-better-than-the-singleton-pattern-in-python as their parents classes objects unless you explicitly override the shared state in that subclass. Each subclass of the singleton..
Proper way to declare custom exceptions in modern Python? http://stackoverflow.com/questions/1319615/proper-way-to-declare-custom-exceptions-in-modern-python but why not class MyException Exception pass Edit to override something or pass extra args do this class ValidationError Exception..
How to extend distutils with a simple post install script? http://stackoverflow.com/questions/1321270/how-to-extend-distutils-with-a-simple-post-install-script like I need to inherit from distutils.command.install override some methods and add this object to the setup script. The specifics..
Format floats with standard json module http://stackoverflow.com/questions/1447287/format-floats-with-standard-json-module desire. Obviously there should be an architected way to override FLOAT_REPR so that EVERY representation of a float is under..
Subclassing Python tuple with multiple __init__ arguments http://stackoverflow.com/questions/1565374/subclassing-python-tuple-with-multiple-init-arguments this question Because tuples are immutable you have to override __new__ instead python docs object.__new__ cls ... Called to..
Method Resolution Order (MRO) in new style Python classes http://stackoverflow.com/questions/1848474/method-resolution-order-mro-in-new-style-python-classes order only once and after all of its subclasses so that overrides i.e. C's override of member x actually work sensibly. It's.. and after all of its subclasses so that overrides i.e. C's override of member x actually work sensibly. It's one of the reasons..
Printing all instances of a class http://stackoverflow.com/questions/328851/printing-all-instances-of-a-class sure to call the base class constructor. You could also override __new__ but only the __new__ method of the first base class..
Python list comprehension rebind names even after scope of comprehension. Is this right? http://stackoverflow.com/questions/4198906/python-list-comprehension-rebind-names-even-after-scope-of-comprehension-is-thi in the list comprehension temporarily shadows but does not override the 'x' in the surrounding scope. share improve this answer..
Python and the Singleton Pattern [duplicate] http://stackoverflow.com/questions/42558/python-and-the-singleton-pattern patterns singleton share improve this question You can override the new method like this class Singleton object _instance None..
Python's use of __new__ and __init__? http://stackoverflow.com/questions/674304/pythons-use-of-new-and-init after it's been created. In general you shouldn't need to override __new__ unless you're subclassing an immutable type like str..
Why are Python's 'private' methods not actually private? http://stackoverflow.com/questions/70528/why-are-pythons-private-methods-not-actually-private is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's..
http://stackoverflow.com/questions/1096216/override-namespace-in-python namespace in python Say there is a folder ' home user temp..
Override function declaration in autodoc for sphinx http://stackoverflow.com/questions/12082570/override-function-declaration-in-autodoc-for-sphinx function declaration in autodoc for sphinx I have a module.. about it. However you can work around this in two ways Override the signature in the .rst file by using autofunction as explained..
How to make built-in containers (sets, dicts, lists) thread safe? http://stackoverflow.com/questions/13610654/how-to-make-built-in-containers-sets-dicts-lists-thread-safe lock a method a TypeError is raised def frobnify self pass Override Attribute access with __getattribute__ class AttrLockedSet set..
Override 'in' operator in Python http://stackoverflow.com/questions/2217001/override-in-operator-in-python 'in' operator in Python If I am creating my own class in Python..
Using one Scrapy spider for several websites http://stackoverflow.com/questions/2396529/using-one-scrapy-spider-for-several-websites Scrapy v0.7 spider manager api changed a lot since then. Override default SpiderManager class load your custom rules from a database..
How to expire session due to inactivity in Django? http://stackoverflow.com/questions/3024153/how-to-expire-session-due-to-inactivity-in-django to be 'current time inactivity period' on every request. Override process_request in SessionMiddleware and check for session expiry...
Finding a function's parameters in Python http://stackoverflow.com/questions/3375573/finding-a-functions-parameters-in-python like class that uses its __init__ params for default keys. Override PARAMS DEFAULT_PARAMS PARAM_MAPPING and DICT_MAPPING in the..
Easy JSON encoding with Python http://stackoverflow.com/questions/3679306/easy-json-encoding-with-python but you can write one if your objects are simple enough. Override the default method in the JSONEncoder to look at inspect.getmembers..
Override a method at instance level http://stackoverflow.com/questions/394770/override-a-method-at-instance-level a method at instance level Is there a way in Python to override..
Modifying Microsoft Outlook contacts from Python http://stackoverflow.com/questions/405724/modifying-microsoft-outlook-contacts-from-python contact.LastName contact.categories 'Supplier' # Override the categories # Edit I don't always do these last steps. ns..
Django. Override save for model http://stackoverflow.com/questions/4269605/django-override-save-for-model Override save for model Before saving model I'm re size a picture. But..
Client Server programming in python? http://stackoverflow.com/questions/487229/client-server-programming-in-python # Our thread class class ClientThread threading.Thread # Override Thread's __init__ method to accept the parameters needed def..
Giving parameters into TestCase from Suite in python http://stackoverflow.com/questions/5336626/giving-parameters-into-testcase-from-suite-in-python self methodName def __str__ self ''' Override this so that we know which instance it is ''' return s s s self._testMethodName..
urllib2 POST progress monitoring http://stackoverflow.com/questions/5925028/urllib2-post-progress-monitoring correct size used to populate the Content Length header. Override the read method on your file handle as httplib calls read your..
Logging Uncaught Exceptions in Python http://stackoverflow.com/questions/6234405/logging-uncaught-exceptions-in-python print 'Value ' value ... print 'Traceback ' traceback ... Override sys.excepthook sys.excepthook foo Commit obvious syntax error..
mysql-python installation problems (on mac os x lion) http://stackoverflow.com/questions/7335853/mysql-python-installation-problems-on-mac-os-x-lion I've run into it and there are a couple things you can do Override the environment You can change the DYLD_LIBRARY_PATH environment..
Override Django form field's name attr http://stackoverflow.com/questions/8801910/override-django-form-fields-name-attr Django form field's name attr I've built a Django form that.. class that represents it. This would need two components Override the name value in the widget Make the form read this value from..
Python Twisted proxy - how to intercept packets http://stackoverflow.com/questions/9063583/python-twisted-proxy-how-to-intercept-packets twisted packet intercept share improve this question Override the dataReceived method of a protocol proxy.Proxy in your case..
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