Am 03.01.2015 um 22:59 schrieb Ondřej Čertík:
On Sat, Jan 3, 2015 at 1:27 PM, Joachim Durchholz <j...@durchholz.org> wrote:
Am 03.01.2015 um 13:02 schrieb Sergey B Kirpichev:
On Sat, Jan 03, 2015 at 12:27:41PM +0100, Joachim Durchholz wrote:
Lets hope that mpmath will not break backward compatibility.
I wouldn't want to rely on hope.
In fact, this is a sane assumption about library development.
I strongly disagree about this being a sane assumption.
It may be sane for libraries that already have a varied set of consumers,
which is proof that they have committed to a stable API. Even there, I have
seen libraries make horrifying decisions.
Fredrik said that he will try to keep the API stable, so it will work out fine.
I still see risks, though there's a limit to which discussing failure
scenarios makes sense. After a while, the probability of overlooking a
failure scenario becomes higher than the probability of each individual
failure scenario.
However, even if the risk is small, I wouldn't want to promote using
SymPy together with an mpmath version that it wasn't tested against.
I think we can solve technical problems like testing on Travis.
That's going to be a combinatorial explosion.
I agree with you that pip is a horrible way to install and maintain
software,
What are the problems with that?
Right now I'm aware of that versioning issue, which I think can be
worked around though I'm not 100% sure yet.
> but fortunately there are now pretty good package source
managers like Conda or Hashdist,
How are they better than pip?
I'm not opposed to any of these actually, I just don't know what the
differences are.
I'm generally much in favor of unbundling, I'm just extremely cautious
about avoiding reliability or bugfixing problems. What I wouldn't want
is if SymPy got cluttered with code that used different workarounds
depending on what version of a dependency is installed - such things are
reliability and productivity killers (been there, done that, didn't like
it).
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