how to repeat function definitions less

andrew cooke andrew at acooke.org
Sun Mar 15 00:33:00 CET 2009


is this what you want (python 3.0)?

>>> class Colours:
...   def __init__(self):
...     for colour in ['red', 'blue']:
...       setattr(self, colour, lambda value, c=colour: self.write(value, c))
...   def write(self, value, colour):
...     print(value, colour)
...
>>> c = Colours()
>>> c.red(1)
1 red

andrew



alex goretoy wrote:
> I'm doing this in my code, how to make it define all this functions for me
> with lambda, I've been up for a while and cant seem to figure it out,
> whats
> the most efficient way to do it? with lambda? how? thx
>
>     def red(self,value,color='red',level='INFO'):
>         self.write(value,color,level)
>     def gold(self,value,color='gold',level='INFO'):
>         self.write(value,color,level)
>     def green(self,value,color='green',level='INFO'):
>         self.write(value,color,level)
>     def blue(self,value,color='blue',level='INFO'):
>         self.write(value,color,level)
>     def yellow(self,value,color='yellow',level='INFO'):
>         self.write(value,color,level)
>     def purple(self,value,color='purple',level='INFO'):
>         self.write(value,color,level)
>     def w_red(self,value,color='white_on_red',level='INFO'):
>         self.write(value,color,level)
>     def w_gold(self,value,color='white_on_gold',level='INFO'):
>         self.write(value,color,level)
>     def w(self,value,color="red",level="INFO"):
>         self.write(value,color,level)
>     def write(self,value,color="red",level="INFO"):
>         """
>         write - output message,take value string or list,color=""
>         """
>         self._hero(value,color,level)
>
>
> -Alex Goretoy
> http://www.goretoy.com
> --
> http://mail.python.org/mailman/listinfo/python-list
>





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