Re: hstore_plpython regression test does not work on Python 3

Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> On 5/26/15 5:19 PM, Oskari Saarenmaa wrote:
>> Looks like that animal uses Python 3.4. Python 3.3 and newer versions
>> default to using a random seed for hashing objects into dicts which
>> makes the order of dict elements random; see
>> https://docs.python.org/3/using/cmdline.html#cmdoption-R

> Ah, good catch. That explains the, well, randomness. I can reproduce
> the test failures with PYTHONHASHSEED=2.

> But I haven't been successful getting that environment variable set so
> that it works in the installcheck case.

Yeah, there's pretty much no chance of controlling the postmaster's
environment in installcheck cases.

> Instead, I have rewritten the tests to use asserts instead of textual
> comparisons. See attached patch. Comments?

If that works back to Python 2.3 or whatever is the oldest we support,
sounds good to me.

regards, tom lane