Function _hashlib_new

Lib/test/support/hashlib_helper.py:597–617

Check availability of [hashlib|_hashlib].new(digestname, **kwargs). If *openssl* is True, module is "_hashlib" (C extension module), otherwise it is "hashlib" (pure Python interface). The constructor function is returned (without binding **kwargs), or SkipTest is raised if none exi

(digestname, openssl, /, **kwargs)

def _hashlib_new(digestname, openssl, /, **kwargs):
    """Check availability of [hashlib|_hashlib].new(digestname, **kwargs).

    If *openssl* is True, module is "_hashlib" (C extension module),
    otherwise it is "hashlib" (pure Python interface).

    The constructor function is returned (without binding **kwargs),
    or SkipTest is raised if none exists.
    """
    assert isinstance(digestname, str), digestname
    # Re-import 'hashlib' in case it was mocked, but propagate
    # exceptions as it should be unconditionally available.
    hashlib = importlib.import_module("hashlib")
    # re-import '_hashlib' in case it was mocked
    _hashlib = _import_module("_hashlib")
    module = _hashlib if openssl and _hashlib is not None else hashlib
    try:
        module.new(digestname, **kwargs)
    except ValueError as exc:
        raise SkipNoHashInCall(f"{module.__name__}.new", digestname) from exc
    return functools.partial(module.new, digestname)


def _builtin_hash(module_name, digestname, /, **kwargs):