Every so often Guido talks about adding optional typing to python.
Adaptation may offer the cleanest way to do this.
Turning
def fn(a, b, c="default"): ...
into any of
def fn(Seq a, Index b, Text c="default"): ...
def fn(Seq(a), Index(b), Text(c)="default"): ...
or (wrapped version)
def fn(Seq a,
Index b,
Text c="default"): ...
doesn't seem so awful. (I'm not sure it is a net positive for
readability, but I'm also not sure it isn't.) I read the type
information as "normally this is just an assertion, but I suppose some
protocols might *make* it true for me."
-jJ
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