On June 16, 2023 at 15:11 EDT, John Ralls wrote:
On 06/15/2023 12:23 -0700, Bruce S wrote:
Non-production release 1.56_02 is available for
evaluation/testing.
It can be installed via cpan/cpanm as
'BPSCHUCK/Finance-Quote-1.56_02.tar.gz'.
The YahooWeb module currently requires the Date::Business module.
Installing it cannot be done unattended, as the Makefile.PL used
requires a yes/no question be answered. Not updated since January
2000, attempts to reach the author have been unsuccessful so far.
Maybe you could use Date::Manip::Date_PrevWorkDay instead?
As I mentioned, I was looking at that along with Date::Business. I also
looked at Date::Holidays today.
What I found about Date::Manip is that for business mode calculations
the module requires a configuration file. See Date::Manip::Config where
is notes:
"NOTE: if you use business mode calculations, you must have a config
file since this is the only place where you can define holidays."
From the documentation (a rabbit hole of many man pages/PODs) that
includes have date_PrevWorkDay skip over weekends (haven't tested if
this just means you want to define your own custom work week).
I going to assume that requiring GnuCash users to have a config file for
Date::Manip and keep it updated could be problematic for some.
What I found about Date::Holidays so far is that users would need to
install all the Date::Holidays::<country> modules that Finance::Quote
may use. F::Q would then be at the mercy of all the different authors
with respect to those modules being updated. Also, the current US or
USFederal modules do not account for Juneteenth or Good Friday.
Juneteenth being a newly created holiday here in the US, and Good Friday
is observed by the US stock market each year.
But either way it's pretty US-centric because of the holidays
enumeration. What about the Monday-Friday trading days assumption?
Is that valid for all of the stock markets that Yahoo can get quotes
for?
I'm at a loss. Although at the current moment, YahooWeb isn't required
as long other viable quote sources exist. I like the Date::Business
module, I just wish its install honored the PERL_USE_MM_DEFAULTS
environment variable. It would be trivial to create different holiday
subroutines for various exchanges/countries and use the one for the
exchange indicated in the data returned. I have started the process
CPAN/Pause requires for adopting the Date::Business module namespace if
the original author/authors are unresponsive.
Bruce S.
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