marshal shouldn't be representing doubles as decimal strings to begin with. All code for (de)serialing C doubles should go thru _PyFloat_Pack8() and _PyFloat_Unpack8(). cPickle (proto >= 1) and struct (std mode) already do; marshal is the oddball.
But as the docs (floatobject.h) for these say: ... * Bug: What this does is undefined if x is a NaN or infinity. * Bug: -0.0 and +0.0 produce the same string. */ PyAPI_FUNC(int) _PyFloat_Pack4(double x, unsigned char *p, int le); PyAPI_FUNC(int) _PyFloat_Pack8(double x, unsigned char *p, int le); ... * Bug: What this does is undefined if the string represents a NaN or * infinity. */ PyAPI_FUNC(double) _PyFloat_Unpack4(const unsigned char *p, int le); PyAPI_FUNC(double) _PyFloat_Unpack8(const unsigned char *p, int le); _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com