On Apr 16, 10:00 pm, Rob Beezer <goo...@beezer.cotse.net> wrote:
> Hi John,
>
> Thanks for the fix! That behavior was driving me crazy. ;-) I've
> been away for a few days, so I'm sorry I didn't reply to your other
> messages as you diagnosed this.
>
> I'll get back to this soon and I'll keep an eye out for any
> explanations, in addition to looking at #5610. I've only written a
> few new doctests for this file, but have spent enough time with the
> code that I might be able to add some more, more quickly.
>
> While on the topic, is there a need for the global "_have_dvipng"
> variable in this file? it only seems to be used within the have_dvipng
> () function, and nowhere else. I was thinking of removing it.
In #5610, I added this docstring to the function "have_dvipng"; I
think this description is accurate:
"""
Return True if this computer has the program dvipng.
The first time it is run, this function caches its result in the
variable ``_have_dvipng``, and any subsequence time, it just
checks the value of the variable.
"""
So I don't think the variable can be discarded.
John
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