Basic Intro to Python Metaprogramming

Basic Intro to Python Metaprogramming(bitshaq.com)

82 points by nuclearsandwich 14 years ago | 8 comments

iandanforth 14 years ago |

For me this article was written in reverse. For an intro I'd love to have had the 'code smell' example first to establish why I might care and when I might need this, and then dive into an example.

irahul 14 years ago | |

May be this helps http://blip.tv/pycon-us-videos-2009-2010-2011/pycon-2010-pyt...

endgame 14 years ago |

Can everyone please stop shoehorning in random xkcd comics where they don't belong?

tbh2347 14 years ago | |

At the risk of introducing another level, I will mention that these comments are very Meta :)

ciupicri 14 years ago |

Forbidden

You don't have permission to access /2011/07/14/basic-intro-to-python-meta-programming/ on this server.

irahul 14 years ago |

>>> Foo = type("Foo", (FooBase,), {'bar' : 42})

is not equivalent to what the blog post says it is to. FooBase should be defined before running this, and the blog post's equivalent make it look like this statement defines FooBase as well.

jackpirate 14 years ago | |

I think you neglected the line in front of it, which does define FooBase.

   1. >>> FooBase = type("FooBase", (object,), {})  
   2. >>> Foo = type("Foo", (FooBase,), {'bar' : 42})

Although I am not a python expert, so you may be right... in which case, how does line one not work?

irahul 14 years ago | | |

I stand corrected - I was skimming and didn't notice. The example is correct - I was wrong.