So let me see if I get this correctly... Perl's foreach creates a new lexical scope (i.e. a new binding a.k.a. stack frame) at each iteration.
Python's for loop doesn't do that, and hence the difference in behavior.
Does Perl's for (my $i = 0; $i < $N; ++$i)
behave the same way?
I wonder about the tradeoffs here. It seems likely that foreach's creation of new scopes cost something. Does it make it inherenty slower than a for loop that would not create a scope ?
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