# PyHash API

See also the `PyTypeObject.tp_hash` member.

type Py_hash_t

  Hash value type: signed integer.

  在 3.2 版本加入.

type Py_uhash_t

  Hash value type: unsigned integer.

  在 3.2 版本加入.

type PyHash_FuncDef

  Hash function definition used by `PyHash_GetFuncDef()`.

  const char *name

    Hash function name (UTF-8 encoded string).

  const int hash_bits

    Internal size of the hash value in bits.

  const int seed_bits

    Size of seed input in bits.

  在 3.4 版本加入.

PyHash_FuncDef *PyHash_GetFuncDef(void)

  Get the hash function definition.

  参见

  PEP 456 "Secure and interchangeable hash algorithm".

  在 3.4 版本加入.