Le 30/03/17 à 15:51, Mark E. Haase a écrit :
I'm not picking on your specific example. I am only pointing out that
Python gives you the tools you need to build nice APIs. If repetition
is an important part of something you're working on, then consider
using itertools.repeat, writing your own domain-specific repeat()
method, or even override * like list() does. One of the coolest
aspects of Python is how a relatively small set of abstractions can be
combined to create lots of useful behaviors.
For students, the lack of a "repeat" block might be confusing at
first, but once the student understands for loops in general, it's an
easy mental jump from "using the loop variable in the body" to "not
using the loop variable in the body" to "underscore is the convention
for an unused loop variable". In the long run, having one syntax that
does many things is simpler than having many syntaxes that each do one
little thing.
+1
I would add that it is even the convention for all unused variables, not
only in loops, as it is also used in other cases, like this for example :
key, _, value = "foo:date:bar".split(":")
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