I'm not sure that many Sage user will try ModularSymbols() as their 4th
Sage command....!
John
On Mon, 8 Oct 2018 at 14:49, William Stein <wst...@gmail.com> wrote:
> Hi,
>
> If you want to play around with a copy of Sage built using Python3
> instead of Python2 (so 'export SAGE_PYTHON3="was"') without having to
> build or install anything, send me an email (wst...@gmail.com) and
> I'll add you to a CoCalc project [1] that has Sage built that way.
>
> See how long until it breaks for you on your favorite Sage commands.
> For me, it broke pretty quickly:
>
> sage: print(2,3)
> 2 3
> sage: range(10)
> range(0, 10)
> sage: {'a', 'b'}
> {'a', 'b'}
> sage: M = ModularSymbols(23)
> ---------------------------------------------------------------------------
> TypeError Traceback (most recent call last)
> <ipython-input-6-b5f2062004dc> in <module>()
> ----> 1 M = ModularSymbols(Integer(23))
>
>
> /home/user/sage/local/lib/python3.6/site-packages/sage/modular/modsym/modsym.py
> in ModularSymbols(group, weight, sign, base_ring, use_cache,
> custom_init)
> 346 key = canonical_parameters(group, weight, sign, base_ring)
> 347
> --> 348 if use_cache and key in _cache:
> 349 M = _cache[key]()
> 350 if not (M is None): return M
>
> TypeError: unhashable type: 'Gamma0_class_with_category'
>
> -- William
>
>
> [1]
> https://cocalc.com/projects/d282680a-dda9-486c-87fe-d7f4331bbf53/files/README.md?session=default
> --
> William (http://wstein.org)
>
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