Op 2005-01-14, Steve Holden schreef <[EMAIL PROTECTED]>: > Antoon Pardon wrote: > >> Op 2005-01-13, hanz schreef <[EMAIL PROTECTED]>: >> >>>Antoon Pardon wrote: >>> >>>>So if I have a call with an expression that takes more than >>>>one line, I should assign the expression to a variable and >>>>use the variable in the call? >>> >>>Yes, that's sometimes a good practice and can clarify >>>the call. >>> >>> >>>>But wait if I do that, people will tell me how bad that it >>>>is, because it will keep a reference to the value which >>>>will prevent the garbage collector from harvesting this >>>>memory. >>> > Of course, unless that reference is in the global scope of the __main__ > module its lifetime will be transient anyway. If the reference is stored > in a function's local variable then unless its value is returned from > the function it will become available for garbage collection when the > function returns. > >>>Nobody will tell you that it's bad. >> >> >> Sorry, someone already did. If I recall correctly it >> was Alex Martelli. >> > "A foolish consistency is the hobgoblin of little minds". Rules are made > to be broken.
Like only use immutables as dictionary keys. > Besides which, if you don't understand the language > environment, rules alone will do you very little good. Try to focus a > little more on principles and a little less on minutiae. And what are the difference between those two? Sometimes I get the impression that everything is a principle until one personnaly finds the need to break it. After that it is a rule. -- Antoon Pardon -- http://mail.python.org/mailman/listinfo/python-list
