Potential bug/Unspecified behaviour

Let's look at a template like this:

http://example.com/dictionary/{term:1}

We have two different behaviours depending upon the value used to expand term.

>>> import uritemplate
>>> u = uritemplate.URITemplate('http://example.com/dictionary/{term:1}')
>>> u.expand(term='foo')
'http://example.com/dictionary/f'
>>> u.expand(term=['foo', 'bar', 'bogus'])
'http://example.com/dictionary/foo,bar,bogus'

A simplified version of this is simply

{term:1}

In other words:

>>> import uritemplate
>>> u = uritemplate.URITemplate('{term:1}')
>>> u.expand(term='foo')
'f'
>>> u.expand(term=['foo', 'bar', 'bogus'])
'foo,bar,bogus'

All versions of uritemplate (and uritemplate.py) exhibit this behaviour and the RFC does not provide clear guidance.

I have not investigated how other implementations in other languages handle this, though. There do not appear to be any examples in the RFC that combine lists with length limitations.

Empieza por los ejemplos de URITemplate.expand del issue y las reglas del modificador de prefijo de RFC 6570; después compara la expansión de escalares y listas. El issue no especifica archivos del repositorio ni una prueba existente; la finalización debería significar una interpretación acordada de los valores de lista y cobertura de regresión para ambas formas.