diff options
Diffstat (limited to 'numpy/core/numeric.py')
| -rw-r--r-- | numpy/core/numeric.py | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/numpy/core/numeric.py b/numpy/core/numeric.py index 176212d09..fba6512b2 100644 --- a/numpy/core/numeric.py +++ b/numpy/core/numeric.py @@ -262,6 +262,14 @@ def asarray(a, dtype=None, order=None): >>> np.asarray(a) is a True + If `dtype` is set, array is copied only if dtype does not match: + + >>> a = np.array([1, 2], dtype=np.float32) + >>> np.asarray(a, dtype=np.float32) is a + True + >>> np.asarray(a, dtype=np.float64) is a + False + Contrary to `asanyarray`, ndarray subclasses are not passed through: >>> issubclass(np.matrix, np.ndarray) @@ -2090,25 +2098,6 @@ def seterr(all=None, divide=None, over=None, under=None, invalid=None): Warning: overflow encountered in short_scalars 30464 - Calling `seterr` with no arguments resets treatment for all floating-point - errors to the defaults. XXX: lies!!! code doesn't do that - >>> np.geterr() - {'over': 'ignore', 'divide': 'ignore', 'invalid': 'ignore', 'under': 'ignore'} - >>> np.seterr(all='warn') - {'over': 'ignore', 'divide': 'ignore', 'invalid': 'ignore', 'under': 'ignore'} - >>> np.geterr() - {'over': 'warn', 'divide': 'warn', 'invalid': 'warn', 'under': 'warn'} - >>> np.seterr() # XXX: this should reset to defaults according to docstring above - {'over': 'warn', 'divide': 'warn', 'invalid': 'warn', 'under': 'warn'} - >>> np.geterr() # XXX: but clearly it doesn't - {'over': 'warn', 'divide': 'warn', 'invalid': 'warn', 'under': 'warn'} - - >>> old_settings = np.seterr() - >>> old_settings = np.seterr(all='ignore') - >>> np.geterr() - {'over': 'ignore', 'divide': 'ignore', 'invalid': 'ignore', - 'under': 'ignore'} - """ pyvals = umath.geterrobj() |