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Re: extend methods of decimal module

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Mark H. Harris <harrismh777 <at> gmail.com> writes:

> 
> On Thursday, February 27, 2014 10:26:59 PM UTC-6, Chris Angelico wrote:
> 
> > Create Decimal values from strings, not from the str() of a float,
> > which first rounds in binary and then rounds in decimal.
> > 
> 
> Thanks Chris...  another excellent point... ok, you guys have about
convinced me (which is spooky) but,
> hey, I'm teachable...   what is the best strategy then?
> 
> If you get a chance, take a look at the  dmath.py  code on:
> 
>    https://code.google.com/p/pythondecimallibrary/ 
> 
> I got the repository working correctly for me, and the files can be viewed
on-line ...   its a long script, but
> not that hard to look through because all the functions pretty much work
the same... when you've seen one
> converging series function in python you've seen them all!
> 
> Thanks again, Chris.
> 

Hi Mark,
I quickly skimmed through your code and I don't think there is a need for
your D() function at all. I thought it was a class adding some extra
functionality to Decimal (that's because you used a capital letter for its
name), but now I realized that it's just a function returning a Decimal from
the string representation of its argument.
Since by now, I guess, we all agree that using the string representation is
the wrong approach, you can simply use Decimal instead of D() throughout
your code.
Best,
Wolfgang

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Thread

extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-19 07:30 -0800
  Re: extend methods of decimal module Terry Reedy <tjreedy@udel.edu> - 2014-02-19 13:59 -0500
    Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-19 13:30 -0800
      Re: extend methods of decimal module Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-02-19 15:54 -0600
      Re: extend methods of decimal module Terry Reedy <tjreedy@udel.edu> - 2014-02-19 17:10 -0500
        Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 04:07 -0800
          Re: extend methods of decimal module Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2014-02-27 14:42 +0000
            Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 07:42 -0800
              Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 02:57 +1100
              Re: extend methods of decimal module Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2014-02-27 16:24 +0000
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 15:00 -0800
                Re: extend methods of decimal module Wolfgang <xpysol@gmail.com> - 2014-02-27 15:43 -0800
                Re: extend methods of decimal module Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2014-02-27 23:50 +0000
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 18:15 -0800
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 15:26 +1100
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 21:18 -0800
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 16:26 +1100
                Re: extend methods of decimal module Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2014-02-28 08:54 +0000
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-28 10:23 -0800
                Re: extend methods of decimal module Steven D'Aprano <steve@pearwood.info> - 2014-02-28 03:15 +0000
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 20:41 -0800
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 16:00 +1100
                Re: extend methods of decimal module Steven D'Aprano <steve@pearwood.info> - 2014-02-28 07:34 +0000
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 19:52 +1100
                Re: extend methods of decimal module Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-28 15:11 +0000
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-03-01 02:36 +1100
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-28 10:34 -0800
                Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-03-01 05:37 +1100
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-28 11:26 -0800
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-28 11:39 -0800
                Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-28 12:17 -0800
          Re: extend methods of decimal module Terry Reedy <tjreedy@udel.edu> - 2014-02-27 12:07 -0500
            Re: extend methods of decimal module Anssi Saari <as@sci.fi> - 2014-03-01 08:55 +0200
              Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-03-01 16:49 -0800
          Re: extend methods of decimal module Chris Angelico <rosuav@gmail.com> - 2014-02-28 04:48 +1100
      Re: extend methods of decimal module Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-02-19 16:27 -0600
      Re: extend methods of decimal module casevh@gmail.com - 2014-02-19 21:11 -0800
        Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 02:33 -0800
          Re: extend methods of decimal module casevh@gmail.com - 2014-02-28 06:23 -0800
  Re: extend methods of decimal module Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2014-02-19 22:29 +0000
    Re: extend methods of decimal module "Mark H. Harris" <harrismh777@gmail.com> - 2014-02-27 02:37 -0800

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