Message 106291 - Python tracker (original) (raw)

Updated patch:

• make hash(m/P) preserve sign, as discussed earlier
• add details for computing the hash of a complex number
• reorganize sys.hash_info

  • drop sys.hash_info.bits (the exponent of the Mersenne prime); it's not needed in the Python code, and it can be deduced from the prime itself if necessary. This also means that there's no public requirement that the prime be a Mersenne prime.

  • drop sys.hash_info.ninf; just use -sys.hash_info.inf instead

  • add sys.hash_info.width: the underlying width in bits for hashes of all descriptions; in other words, it's just the number of bits in a C long in the current implementation

  • add sys.hash_info.imag, the multiplier used for the imaginary part of a complex number