segmentation fault when calling the mpmath.mp.fraction(1,100).func(1000,None) about mpmath-2 HOT 2 OPEN

The code in gmpy didn't properly check the rounding mode. If the rounding mode 
is not a string, gmpy would cause a segmentation fault. I just committed a 
patch to gmpy2 (the next major version of gmpy) that should fix the issue.

>>> import mpmath
>>> mpmath.mp.fraction(1,100).func(100,None)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "mpmath/ctx_mp.py", line 1184, in <lambda>
    return ctx.constant(lambda prec, rnd: from_rational(p, q, prec, rnd),
  File "mpmath/libmp/libmpf.py", line 468, in from_rational
    return mpf_div(from_int(p), from_int(q), prec, rnd)
  File "mpmath/libmp/libmpf.py", line 958, in mpf_div
    return normalize1(sign, quot, sexp-texp-extra, bitcount(quot), prec, rnd)
ValueError: invalid rounding mode specified
>>> 

Can you test the svn version of gmpy2? I have created issue 68 at 
code.google.com/p/gmpy/ to track this issue.

Taking ownership....