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python Programming Glossary: modelFlatten (an irregular) list of lists in Python http://stackoverflow.com/questions/2158395/flatten-an-irregular-list-of-lists-in-python result.append el return result flatten L Is this the best model Did I overlook something Any problems python list share improve..
In a django form, How to make a field readonly (or disabled) so that it cannot be edited? http://stackoverflow.com/questions/324477/in-a-django-form-how-to-make-a-field-readonly-or-disabled-so-that-it-cannot-b need to be read only. For example when creating a new Item model all fields must be editable but while updating the record is.. so that it is visible but cannot be edited class Item models.Model sku models.CharField max_length 50 description models.CharField.. visible but cannot be edited class Item models.Model sku models.CharField max_length 50 description models.CharField max_length..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat something else. I suspect trying to get the Python AST to model PHP is going to be a lot of fun . The reason I started to build..
Extending the User model with custom fields in Django http://stackoverflow.com/questions/44109/extending-the-user-model-with-custom-fields-in-django the User model with custom fields in Django What's the best way to extend.. fields in Django What's the best way to extend the User model bundled with Django's authentication app with custom fields.. User property. That said extending django.contrib.auth.models.User also works better now ever since the refactoring of Django's..
Old style and new style classes in Python http://stackoverflow.com/questions/54867/old-style-and-new-style-classes-in-python new style classes is to provide a unified object model with a full meta model . It also has a number of immediate benefits.. is to provide a unified object model with a full meta model . It also has a number of immediate benefits like the ability.. Some of these changes are fundamental to the new object model like the way special methods are invoked. Others are fixes that..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields dynamic model fields I'm working on a multi tenanted application in which.. I have the following solution class CustomDataField models.Model Abstract specification for arbitrary data fields. Not.. holding data itself but metadata about the fields. site models.ForeignKey Site default settings.SITE_ID name models.CharField..
http://stackoverflow.com/questions/929029/how-do-i-access-the-child-classes-of-an-object-in-django-without-knowing-the-nam doesn't require the added real_type field on the parent model. It's available as InheritanceManager in the django model utils.. model. It's available as InheritanceManager in the django model utils project. The usual way to do this is to add a ForeignKey.. this is to add a ForeignKey to ContentType on the Parent model which stores the content type of the proper leaf class. Without..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python samples. I used it and made a code for cv2.KNearest in the model of letter_recog.py just for testing import numpy as np import.. 0 lambda ch ord ch ord 'A' samples responses a 1 a 0 model cv2.KNearest retval model.train samples responses retval results.. 'A' samples responses a 1 a 0 model cv2.KNearest retval model.train samples responses retval results neigh_resp dists model.find_nearest..
Recommended Python publish/subscribe/dispatch module? http://stackoverflow.com/questions/115844/recommended-python-publish-subscribe-dispatch-module come from. This is a great tool for implementing a Model View Controller architecture or any similar architecture that..
How do I define a unique property for a Model in Google App Engine? http://stackoverflow.com/questions/1185628/how-do-i-define-a-unique-property-for-a-model-in-google-app-engine do I define a unique property for a Model in Google App Engine I need some properties to be unique. How.. sure a value is unique. You can do this however query MyModel.all keys_only True .filter 'unique_property' value_to_be_used.. use the second method like this class UniqueConstraint db.Model @classmethod def check cls model values # Create a pseudo key..
Separation of business logic and data access in django http://stackoverflow.com/questions/12578908/separation-of-business-logic-and-data-access-in-django a simple example. At first it was like this class User db.Models def get_present_name self return self.name or 'Anonymous' def.. self.save Over time it turned into this class User db.Models def get_present_name self # property became not deterministic.. tools that can be used for this purpose. About the Domain Model The first thing you need to recognize is that your domain model..
XML parsing in Python [closed] http://stackoverflow.com/questions/1373707/xml-parsing-in-python a DOM tree implementing the standard Document Object Model API If you later need to do complex things like schema validation..
http://stackoverflow.com/questions/1528583/django-vote-up-down-method RedditStyleVoting Implementing reddit style voting for any Model with django voting http code.google.com p django voting wiki..
Django - Iterate over model instance field names and values in template http://stackoverflow.com/questions/2170228/django-iterate-over-model-instance-field-names-and-values-in-template say we have the following model definition class Client Model name CharField max_length 150 email EmailField max_length 100..
Get hard disk serial number using Python on Linux http://stackoverflow.com/questions/4193514/get-hard-disk-serial-number-using-python-on-linux fields 10 .strip model fields 15 .strip print Hard Disk Model s model print Serial Number s serial_no ## For documentation.. ~ Desktop hdserial sudo python hd.py dev sda Hard Disk Model FUJITSU MHV2080BH PL Serial Number NW What's going on here In..
Does python have an equivalent to Java Class.forName()? http://stackoverflow.com/questions/452969/does-python-have-an-equivalent-to-java-class-forname name Say for example if you class name is foo.baz.bar.Model then we do this m __import__ foo.baz.bar #m is package foo m.. package baz m getattr m bar #m is module bar m getattr m Model #m is class Model This is what's happening in this loop for.. m bar #m is module bar m getattr m Model #m is class Model This is what's happening in this loop for comp in parts 1 m..
Customizing an Admin form in Django while also using autodiscover http://stackoverflow.com/questions/471550/customizing-an-admin-form-in-django-while-also-using-autodiscover that's needed. When I use autodiscover with a customized ModelAdmin for auth I wind up conflicting with auth 's own admin interface.. I have to create my own admin site enumerating all of my Models. It's only 18 classes but it seems like a DRY problem every.. a DRY problem every change requires both adding to the Model and adding to the customized admin site. Or should I write my..
http://stackoverflow.com/questions/4915397/django-blob-model-field Blob Model Field How do you store a blob of binary data using Django's..
Store jpg, gif, png, etc it gae-datastore http://stackoverflow.com/questions/5211780/store-jpg-gif-png-etc-it-gae-datastore to as they have in the example create a new Class for the Model and store certain metadata name filetype etc. needed for the..
Customize/remove Django select box blank option http://stackoverflow.com/questions/739260/customize-remove-django-select-box-blank-option box blank option I'm using Django 1.0.2. I've written a ModelForm backed by a Model. This model has a ForeignKey where blank.. using Django 1.0.2. I've written a ModelForm backed by a Model. This model has a ForeignKey where blank False. When Django.. and here I believe it should work class ThingForm models.ModelForm class Meta model Thing def __init__ self args kwargs super..
How do you serialize a model instance in Django? http://stackoverflow.com/questions/757022/how-do-you-serialize-a-model-instance-in-django There is a lot of documentation on how to serialize a Model QuerySet but how do you just serialize to json the fields of.. but how do you just serialize to json the fields of a Model Instance python django json django models serialization share..
Django Tastypie: How to Authenticate with API Key http://stackoverflow.com/questions/7814128/django-tastypie-how-to-authenticate-with-api-key import ApiKeyAuthentication class MyResource ModelResource Meta authentication ApiKeyAuthentication With Auth rules.. a machine generated api key. Tastypie ships with a special Model just for this purpose so you'll need to ensure tastypie is in..
Using Python's Multiprocessing module to execute simultaneous and separate SEAWAT/MODFLOW model runs http://stackoverflow.com/questions/9874042/using-pythons-multiprocessing-module-to-execute-simultaneous-and-separate-seawa answer below I get parallel execution of my external .exe. Model realizations are called up in batches of 8 at a time but it..
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