31.08.17 17:38, Steve D'Aprano пише:
On Thu, 31 Aug 2017 11:45 pm, Serhiy Storchaka wrote:
It is not clear what is your problem exactly.
That is fair. This is why I am discussing it here first, before taking it to
Python-Ideas. At the moment my ideas on the matter are still half-formed.
What are you discussing? Without knowing what problem you are solving
and what solution your are proposed it is hard to discuss it.
The easy one-line function
solves the problem of testing case-insensitive string equality.
True. Except that when a problem is as common as case-insensitive comparisons,
there should be a standard solution, instead of having to re-invent the wheel
over and over again. Even when the wheel is only two or three lines.
This *is* a standard solution. Don't invent the wheel, just use it properly.
This is why we have dict.clear, for example, instead of:
Just add this function to the top of every module and script
def clear(d):
for key in list(d.keys()): del d[key]
No, there are other reasons for adding the clear() method in dict.
Performance and atomicity (and the latter is more important).
We say, *not every* two line function needs to be a builtin, rather than **no**
two line function.
But there should be good reasons for this.
If you asked a solution that magically prevent people
from making simple programming mistakes, there is no such solution.
Very true. But when there is a common source of mistakes, we can help prevent
that mistake.
How can you do this? I know only one way -- teaching and practicing.
--
https://mail.python.org/mailman/listinfo/python-list
