diff options
Diffstat (limited to 'numpy/lib/function_base.py')
| -rw-r--r-- | numpy/lib/function_base.py | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py index ca5ef62ae..20e32a78d 100644 --- a/numpy/lib/function_base.py +++ b/numpy/lib/function_base.py @@ -268,6 +268,19 @@ def iterable(y): >>> np.iterable(2) False + Notes + ----- + In most cases, the results of ``np.iterable(obj)`` are consistent with + ``isinstance(obj, collections.abc.Iterable)``. One notable exception is + the treatment of 0-dimensional arrays:: + + >>> from collections.abc import Iterable + >>> a = np.array(1.0) # 0-dimensional numpy array + >>> isinstance(a, Iterable) + True + >>> np.iterable(a) + False + """ try: iter(y) @@ -657,11 +670,16 @@ def select(condlist, choicelist, default=0): Examples -------- - >>> x = np.arange(10) - >>> condlist = [x<3, x>5] + >>> x = np.arange(6) + >>> condlist = [x<3, x>3] >>> choicelist = [x, x**2] - >>> np.select(condlist, choicelist) - array([ 0, 1, 2, ..., 49, 64, 81]) + >>> np.select(condlist, choicelist, 42) + array([ 0, 1, 2, 42, 16, 25]) + + >>> condlist = [x<=4, x>3] + >>> choicelist = [x, x**2] + >>> np.select(condlist, choicelist, 55) + array([ 0, 1, 2, 3, 4, 25]) """ # Check the size of condlist and choicelist are the same, or abort. @@ -4740,9 +4758,8 @@ def insert(arr, obj, values, axis=None): if indices.size == 1: index = indices.item() if index < -N or index > N: - raise IndexError( - "index %i is out of bounds for axis %i with " - "size %i" % (obj, axis, N)) + raise IndexError(f"index {obj} is out of bounds for axis {axis} " + f"with size {N}") if (index < 0): index += N |