Python | Web Oom

What is super?

django, python No Responses »

Jul 252009

The subclass needs a way to access parent class.

super

is the parent class.

—-

def save(self):

# do something specific customized actions for the model

super(Card, self).save() #perform parent class’s save

——-

request.GET.get('q','')

django, python No Responses »

Jul 252009

get( )

is a method available on any Python dictionary, letting you ask for the value of a particular key and specify a default to fall back on if the key doesn’t exist.

e.g.,

query=request.GET.get(‘q’,”)

If there is no q, then query becomes empty string.

python dictionary access

python No Responses »

Jul 252009

use brackets

e.g.,

request.GET['q']

Simple python naming style

python No Responses »

Jul 252009

For classes:

use capitalized names, camel-style for multiword names

e.g., Context, HttpResponse

For modues, funtions and normal variables:

use lowercase names and underscore to seprate multiple words,

e.g., get_absolute_url

indentation error

python No Responses »

Jul 082009

Python functions have no explicit begin or end, and no curly braces to mark where the function code starts and stops. The only delimiter is a colon (:) and the indentation of the code itself.

This corresponds with def and if etc.

For example,

—

def fib(n):                   
    print 'n =', n            
    if n > 1:                 
        return n * fib(n - 1)
    else:                     
        print 'end of the line'
        return 1