On Sun, Apr 25, 2010 at 9:42 PM, Keith <keith.braff...@gmail.com> wrote: > On Apr 26, 12:02 am, Chris Rebert <c...@rebertia.com> wrote: >> On Sun, Apr 25, 2010 at 8:36 PM, Keith <keith.braff...@gmail.com> wrote: >> > I am considering writing a PEP for the inclusion of an engineering >> > format specifier, and would appreciate input from others. > snip >> Relevant related information: >> The Decimal datatype supports engineering format >> directly:http://docs.python.org/library/decimal.html#decimal.Decimal.to_eng_st... > > Thanks for pointing that out. Does the engineering community get by > with the decimal module? > > Even though this uses the to_eng_string() function, and even though I > am using the decimal.Context class: > >>>> c = decimal.Context(prec=5) >>>> decimal.Decimal(1234567).to_eng_string(c) > '1234567' > > That is not an engineering notation string.
Apparently either you and the General Decimal Arithmetic spec differ on what constitutes engineering notation, there's a bug in the Python decimal library, or you're hitting some obscure part of the spec's definition. I don't have the expertise to know which is the case. The spec: http://speleotrove.com/decimal/decarith.pdf (to-engineering-string is on page 20 if you're interested) Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
