Stefan Krah wrote:
Hi,
I think http://www.python.org/dev/peps/pep-3101/ is too liberal with the
choice of fill characters for numerical values. As far as I can see, this
is quite legal:
Python 2.7a0 (trunk:76132M, Nov 6 2009, 15:20:35)
[GCC 4.1.3 20080623 (prerelease) (Ubuntu 4.1.2-23ubuntu3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
from decimal import *
format(Decimal(4), "9<10")
'4999999999'
format(Decimal(4), "9>10")
'9999999994'
format(Decimal(4), "->2")
'-4'
I propose to disallow digits and '+-' fill characters for numerical values,
except for the combination '0, left-padding'. Actually, I'd prefer to allow
only whitespace and '0, left-padding'.
Why?
What problem are you trying to prevent that would justify the extra code
to implement this and the extra documentation to explain it?
Eric.
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