[Python-ideas] Adding "Typed" collections/iterators to Python

Terry Reedy tjreedy at udel.edu
Wed Dec 21 01:59:29 CET 2011

On 12/20/2011 7:51 PM, Devin Jeanpierre wrote:
>> Not exactly true, and unnecessarily combative. More true is that careless
>> use of 'typed' has gotten tiresome. Python is strongly dynamically typed.
>> But people occasionally post -- again the same day you posted to python list
>> -- that Python is weakly typed. I am tired of explaining that 'typed' is not
>> synonymous with 'statically typed'.
> I don't find this much less careless. How do you differentiate between
> the "strong typing" of Python and the "strong typing" of Agda? It
> isn't a binary quantity.
> Perhaps, instead, we should stop claiming things are "strong" or
> "weak". If I said that, relatively speaking, Python is weakly typed,
> people would get offended -- not because I made any technically
> incorrect statement (on the spectrum, Python is far closer to assembly
> than Agda), but because to call it "weak" is insulting.

If you are going to use term idiosyncratically, then consider giving you 
definition along with it. See
for a common usage, by which Python is strongly typed.

Terry Jan Reedy

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