is there any principle when writing python function

[harrismh777]

smith jack wrote:
> i have heard that function invocation in python is expensive, but make
> lots of functions are a good design habit in many other languages, so
> is there any principle when writing python function?
> for example, how many lines should form a function?

Once Abraham Lincoln was asked how long a man's legs should be. (Well, 
he was a tall man and had exceptionally long legs... his bed had to be 
specially made.)

Old Abe said, "A man's legs ought to be long enough to reach from his 
body to the floor".


One time the Austrian Emperor decided that one of Wolfgang Amadeus 
Mozart's masterpieces contained too many notes...  when asked how many 
notes a masterpiece ought to contain it is reported that Mozart 
retorted, "I use precisely as many notes as the piece requires, not one 
note more, and not one note less".


After starting the python interpreter import this:

    import this


... study carefully.   If you're not Dutch, don't worry if some of it 
confuses you. ... apply liberally to your function praxis.


kind regards,




-- 
m harris

FSF  ...free as in freedom/
http://webpages.charter.net/harrismh777/gnulinux/gnulinux.htm