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Normal priority:
----------------
1) Add C-API importable as capsule.
2) Add --with-system-libmpdec to ./configure.
3) Use same default emin/emax on 32-bit (MAX_EMAX=425000000) and 64-bit
(MAX_EMAX=10**18-1).
4) Order of arguments in Context().
5) Documentation.
6) quantize()
- exp argument is misleading:
Decimal('0.321000e+2').quantize(exp=9) -> user might expect
that the result will have exp=9.
- watchexp
7) Match the exception hierarchy of decimal.py:
exceptions.ArithmeticError(exceptions.Exception)
DecimalException
Clamped
DivisionByZero(DecimalException, exceptions.ZeroDivisionError)
Inexact
Overflow(Inexact, Rounded)
Underflow(Inexact, Rounded, Subnormal)
InvalidOperation
Rounded
Subnormal
FloatOperation
Low priority:
-------------
1) Convert tabs (wait until commit).
2) Pre-ANSI compilers require '#' in the first column (should be done
for the whole Python source tree if we support such compilers). (?)
3) FETCH_CURRENT_CONTEXT vs. CURRENT_CONTEXT?
4) Justify remaining uses of exit on overflow in bignum arith. Short
answer: with correct context values the coefficients never get big
enough for that to happen.
5) Justify remaining uses of abort() in mpdecimal: These uses are
for debug purposes and can't be reached when the library is used
correctly.
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