Python is_arity Examples

Example #1

def test_is_arity():
    assert is_arity(0, lambda: None)
    assert is_arity(1, lambda: None) is False
    assert is_arity(1, lambda x: None)
    assert is_arity(3, lambda x, y, z: None)
    assert is_arity(1, lambda x, *args: None) is False
    assert is_arity(1, lambda x, **kwargs: None) is False
    assert is_arity(1, all)
    assert is_arity(2, map) is False
    assert is_arity(2, range) is None

Example #2

File: test_inspect_args.py Project: ethanhelfman/InstaGet

def test_is_arity():
    assert is_arity(0, lambda: None)
    assert is_arity(1, lambda: None) is False
    assert is_arity(1, lambda x: None)
    assert is_arity(3, lambda x, y, z: None)
    assert is_arity(1, lambda x, *args: None) is False
    assert is_arity(1, lambda x, **kwargs: None) is False
    assert is_arity(1, all)
    assert is_arity(2, map) is False
    assert is_arity(2, range) is None

Example #3

def test_introspect_curry_py3():
    if not PY3:
        return
    f = cytoolz.curry(make_func(""))
    assert num_required_args(f) == 0
    assert is_arity(0, f)
    assert has_varargs(f) is False
    assert has_keywords(f) is False

    f = cytoolz.curry(make_func("x"))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)  # A side-effect of being curried

    f = cytoolz.curry(make_func("x, y, z=0"))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert is_arity(2, f) is False
    assert is_arity(3, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)

    f = cytoolz.curry(make_func("*args, **kwargs"))
    assert num_required_args(f) == 0
    assert has_varargs(f)
    assert has_keywords(f)

Example #4

File: test_inspect_args.py Project: ethanhelfman/InstaGet

def test_introspect_curry_py3():
    if not PY3:
        return
    f = cytoolz.curry(make_func(''))
    assert num_required_args(f) == 0
    assert is_arity(0, f)
    assert has_varargs(f) is False
    assert has_keywords(f) is False

    f = cytoolz.curry(make_func('x'))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)  # A side-effect of being curried

    f = cytoolz.curry(make_func('x, y, z=0'))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert is_arity(2, f) is False
    assert is_arity(3, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)

    f = cytoolz.curry(make_func('*args, **kwargs'))
    assert num_required_args(f) == 0
    assert has_varargs(f)
    assert has_keywords(f)

Example #5

File: test_inspect_args.py Project: hitfm00/minter-guard

def test_introspect_curry_py3():
    f = cytoolz.curry(make_func(''))
    assert num_required_args(f) == 0
    assert is_arity(0, f)
    assert has_varargs(f) is False
    assert has_keywords(f) is False

    f = cytoolz.curry(make_func('x'))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)  # A side-effect of being curried

    f = cytoolz.curry(make_func('x, y, z=0'))
    assert num_required_args(f) == 0
    assert is_arity(0, f) is False
    assert is_arity(1, f) is False
    assert is_arity(2, f) is False
    assert is_arity(3, f) is False
    assert has_varargs(f) is False
    assert has_keywords(f)

    f = cytoolz.curry(make_func('*args, **kwargs'))
    assert num_required_args(f) == 0
    assert has_varargs(f)
    assert has_keywords(f)