Paul
Thanks! I'm glad there is theory about my concern. I knew
I wasn't the only one with that question.
cs
> > https://en.wikipedia.org/wiki/Open%E2%80%93closed_principle
>
> Also:
>
> https://en.wikipedia.org/wiki/Expression_problem
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>
> a pattern like:
> if :
> elif :
>
>
Thanks. I really like this simple yet powerful suggestion you made. See
this...
import new_code
...
if foo:
new_code.do_new_stuff(..)
We can massively modify existing code by *ONLY* adding one import and a 2
line if snippet!!!
Very nice!
cs
-
If you want to know, I'm trying to add metaprogramming (macros!) to a tiny Lisp
interpreter I wrote. I'm hesitant to mess with all that nice debugged code to
add this new stuff.
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I have some code I'd like to extend without modifying it.
I'm sure this is a common pattern. I wondered what the
options were for "extending without modifying (much)".
I'm aware one can import a module and add functions to decorators.
Are there other ways?
Thanks!
chris
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