Hullo
I'm trying to use the permutation part of gsl through pygsl in a brute force
attack on my
seven year old's maths homework (you don't want to know). I'm iterating over
Permutation (14) :
approx 87 billion cases, which will take about 10 days.
In practice, I cannot get this calculation to complete in one run and need to
save and recover
the permutation state. Fine, use
pygsl.permutation.gslwrap.gsl_permutation_fwrite (FILE *, permutation)
and the corresponding read function.
I cannot find what the relevant type is for that first parameter. SWIG examples
have standard python
file type, and show how this works. When I try this approach with this function:
...
x = pygsl.permutation.Permutation (5)
f = open ("abc", "w")
pygsl.permutation.gslwrap.gsl_permutation_fwrite (f, x)
...
it bombs out on the last line:
p.gslwrap.gsl_permutation_fwrite (f, x)
TypeError: argument number 1: a 'FILE *' is expected, 'file(<open file 'abcd',
mode 'w' at 0xb7eba380>)' is received
I'm sure that I've missed something obvious, but would appreciate any pointers.
cheers
Tim
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