Python Zone

Today at work I needed a http server with python to test a script that outputs something to the web. I couldn't find one near by. hadn't the time nor the will to setup one, I just postponed the task to another moment. Few seconds later WSGI came to my mind. Yes, why searching for python server when there is a http server in the paste package ? All I need is two lines of code:

from paste import httpserver

httpserver.serve(my_wsgi_app, host='127.0.0.1', port='8080')

voila !

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Since I started developing with python I never found myself in the need of such statement. As I remember I never asked where is the switch statement in this language. I think I never asked that because of the dictionary data type in python that you can use to do the same thing as a switch statement will do. I was surprised that there are many PEPs about adding the switch statement to python.

In other languages the switch statement looks like this:

switch (var)

{

    case value1: do_some_stuff1();

    case value2: do_some_stuff2();

    ...

    case valueN: do_some_stuffN();

   default: do_default_stuff();

}

in python one can do the same thing with the help of a dictionary like this:

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I found this problem at The Voidspace Techie Blog:
Here is it:

>>> 3.__str__()

  File "", line 1

    3.__str__()

            ^

SyntaxError: invalid syntax

Here, python thinks that the dot is the dot of a float and not a dot for an attribute.
But the following works:

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From the Project site:

PyReverse is a set of tools for reverse engineering Python code.
So far, it features dependency analysis tools, unittest skeleton generation, quick UML like diagrams generation and XMI generation for importation in a UML modeling tool. A special module can be used to generate files readable by Argo UML.

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The default python behaviour when calling a class method that does not exist is that you get an exception:

>>> class A(object):

...     pass

... 

>>> a = A()

>>> a.getBlablabla()

Traceback (most recent call last):

  File "", line 1, in ?

AttributeError: 'A' object has no attribute 'getBlablabla'

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