Tutorial by Examples: c

To shelve an object, first import the module and then assign the object value as follows: import shelve database = shelve.open(filename.suffix) object = Object() database['key'] = object

import shelve d = shelve.open(filename) # open -- file may get suffix added by low-level # library d[key] = data # store data at key (overwrites old data if # using an existing key) data = d[key] # retrieve a C...

The simplest way to use shelve is via the DbfilenameShelf class. It uses anydbm to store the data. You can use the class directly, or simply call shelve.open(): import shelve s = shelve.open('test_shelf.db') try: s['key1'] = { 'int': 10, 'float':9.5, 'string':'Sample data' } finally: ...

Shelves do not track modifications to volatile objects, by default. That means if you change the contents of an item stored in the shelf, you must update the shelf explicitly by storing the item again. import shelve s = shelve.open('test_shelf.db') try: print s['key1'] s['key1']['new_...

The following route has a simple goal : First, it checks if and ImportDocumentProcess object is present in the database and adds it as an exchange header Then, it adds an ImportDocumentTraitement (Which is linked to the previous ImportDocumentProcess) in the database Here is the code of this ...

The processor just contains just contains the methods needed by the route. It is just a classic Java Bean containing several methods. You can also implement Processor and override the process method. See the code below : @Component("testExampleProcessor") public class TestExampleProcess...

Don't forget to add the camel test support and spring camel test support to your project dependencies. See the following for maven users : <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-test</artifactId> <version>${camel.version}...

A simple OGL 4.0 GLSL shader program that shows the use of geometry shaders. The program is executed with a phyton script. To run the script, PyOpenGL and NumPy must be installed. In this example, the entire geometry (a cylinder) is generated in the geometry shader. Vertex shader geo.vert #vers...

Cashier Laravel Cashier provides an expressive, fluent interface to Stripe's and Braintree's subscription billing services. It handles almost all of the boilerplate subscription billing code you are dreading writing. In addition to basic subscription management, Cashier can handle coupons, swapping...

Relational DatabaseElasticsearchDatabaseIndexTableTypeRow/RecordDocumentColumn Namefield Above table roughly draws an analogy between basic elements of relational database and elasticsearch. Setup Considering Following structure in a relational database: create databse test; use test; crea...

Essence of searching lies in its order. Everyone wants search results to be shown in such a way that best suited results are shown on top. Relational database do not have such capability. Elasticsearch on the other hand shows results on the basis of relevancy by default. Setup Same as used in ...

When trying to open a Database Connection with QODBC please ensure You have QODBC driver available Your server has an ODBC interface and is enabled to (this depends on your ODBC driver installations) use shared memory access, TCP/IP connections or named pipe connection. All connections only ...

Searches can also be done on elasticsearch using a search DSL.The query element within the search request body allows to define a query using the Query DSL. GET /my_index/type/_search { "query" : { "term" : { "field_to_search" : "search_item" }...

<?xml version="1.0"?> <openerp> <data noupdate="1"> <function model="*model_name*" name="_configure_sales"/> </data> </openerp> This simple xml file is calls _configure_sales function from model_name ...

class *model_name*(models.Model): _name = *model_name* @api.model def _configure_sales(self): # Do the configuration here Every time when module will be installed this function will run. Note: If you remove noupdate from xml, function will run on upgrading as well.

A basic but illustrative heatmap showing correlations between a number of variables. import pandas as pd import seaborn as sns import numpy as np # Sample dataframe with date index and five variables np.random.seed(123) df = pd.DataFrame(np.random.uniform(-0.25,0.25,size=(5, 5)), ...

In this example i will show how to formulate an rest controller to get and post data to the database using JPA with the most ease and least code. In this example we will refer to the data table named buyerRequirement . BuyingRequirement.java @Entity @Table(name = "BUYINGREQUIREMENTS&q...

Let’s Take an Example with Structure of Movie, here we have defined the structure as Codable. So, We can encode and decode it easily. struct Movie: Codable { enum MovieGenere: String, Codable { case horror, skifi, comedy, adventure, animation } var name : String v...

It is possible to switch the language of Crystal Reports user interface. It may be useful to change the language to English before posting screenshots on StackOverflow. You can switch between languages using View | Product Locale: This menu shows all language packs that have been selected during...

Add tastypie to INSTALLED_APPS. Create an api directory in your app with a bare init.py. Create an <my_app>/api/resources.py file and place the following in it: from tastypie.resources import ModelResource from my_app.models import MyModel class MyModelResource(ModelResource): ...