我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用numpy.unicode()。
def test_iter_buffering_string(): # Safe casting disallows shrinking strings a = np.array(['abc', 'a', 'abcd'], dtype=np.bytes_) assert_equal(a.dtype, np.dtype('S4')) assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'], op_dtypes='S2') i = nditer(a, ['buffered'], ['readonly'], op_dtypes='S6') assert_equal(i[0], asbytes('abc')) assert_equal(i[0].dtype, np.dtype('S6')) a = np.array(['abc', 'a', 'abcd'], dtype=np.unicode) assert_equal(a.dtype, np.dtype('U4')) assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'], op_dtypes='U2') i = nditer(a, ['buffered'], ['readonly'], op_dtypes='U6') assert_equal(i[0], sixu('abc')) assert_equal(i[0].dtype, np.dtype('U6'))
def test_unaligned_unicode_access(self, level=rlevel): # Ticket #825 for i in range(1, 9): msg = 'unicode offset: %d chars' % i t = np.dtype([('a', 'S%d' % i), ('b', 'U2')]) x = np.array([(asbytes('a'), sixu('b'))], dtype=t) if sys.version_info[0] >= 3: assert_equal(str(x), "[(b'a', 'b')]", err_msg=msg) else: assert_equal(str(x), "[('a', u'b')]", err_msg=msg)
def test_string_truncation_ucs2(self): # Ticket #2081. Python compiled with two byte unicode # can lead to truncation if itemsize is not properly # adjusted for Numpy's four byte unicode. if sys.version_info[0] >= 3: a = np.array(['abcd']) else: a = np.array([sixu('abcd')]) assert_equal(a.dtype.itemsize, 16)
def test_unicode_alloc_dealloc_match(self): # Ticket #1578, the mismatch only showed up when running # python-debug for python versions >= 2.7, and then as # a core dump and error message. a = np.array(['abc'], dtype=np.unicode)[0] del a
def test_run(self): """Only test hash runs at all.""" for t in [np.int, np.float, np.complex, np.int32, np.str, np.object, np.unicode]: dt = np.dtype(t) hash(dt)
def test_ip_types(self): unchecked_types = [str, unicode, np.void, object] x = np.random.random(1000)*100 mask = x < 40 for val in [-100, 0, 15]: for types in np.sctypes.values(): for T in types: if T not in unchecked_types: yield self.tst_basic, x.copy().astype(T), T, mask, val
def test_ip_types(self): unchecked_types = [str, unicode, np.void, object] x = np.random.random(24)*100 x.shape = 2, 3, 4 for types in np.sctypes.values(): for T in types: if T not in unchecked_types: yield self.tst_basic, x.copy().astype(T)
def test_multiple_field_name_unicode(self): def test_assign_unicode(): dt = np.dtype([("\u20B9", "f8"), ("B", "f8"), ("\u20B9", "f8")]) # Error raised when multiple fields have the same name(unicode included) assert_raises(ValueError, test_assign_unicode)
def test_unicode_field_titles(self): # Unicode field titles are added to field dict on Py2 title = unicode('b') dt = np.dtype([((title, 'a'), int)]) dt[title] dt['a'] x = np.array([(1,), (2,), (3,)], dtype=dt) x[title] x['a'] y = x[0] y[title] y['a']
def test_unicode_field_names(self): # Unicode field names are not allowed on Py2 title = unicode('b') assert_raises(TypeError, np.dtype, [(title, int)]) assert_raises(TypeError, np.dtype, [(('a', title), int)])
def test_empty_ustring_array_is_falsey(self): self.assertFalse(np.array([''], dtype=np.unicode))
def test_whitespace_ustring_array_is_falsey(self): a = np.array(['eggs'], dtype=np.unicode) a[0] = ' \0\0' self.assertFalse(a)
def test_all_null_ustring_array_is_falsey(self): a = np.array(['eggs'], dtype=np.unicode) a[0] = '\0\0\0\0' self.assertFalse(a)
def test_null_inside_ustring_array_is_truthy(self): a = np.array(['eggs'], dtype=np.unicode) a[0] = ' \0 \0' self.assertTrue(a)
def save_feature_file(fname, data): with h5py.File(fname, 'w') as hdf: for s in data: grp = '{}:{}-{}'.format(s.ref_name, s.positions['major'][0], s.positions['major'][-1] + 1) for field in s._fields: if getattr(s, field) is not None: data = getattr(s, field) if isinstance(data, np.ndarray) and isinstance(data[0], np.unicode): data = np.char.encode(data) hdf['{}/{}'.format(grp, field)] = data
def setGridSym(self, refresh=True): self.grid = np.array([[ u'\U0001F44D', u'\U0001F4D6', u'\U0001F60C', u'\U0001F615', u'\U0001F60E', u'\u2615' ], [ u'\U0001F44E', u'\U0001F4FA', u'\U0001F603', u'\U0001F61C', u'\u26C8', u'\U0001F354'], [ u'\u267F', u'\u260E', u'\U0001F61E', u'\U0001F622', u'\u263C', u'\U0001F355'], [ u'\u266B', u'\u26A0', u'\U0001F620', u'\U0001F60D', u'\U0001F319', u'\U0001F36D'], [ u'\U0001F3AE', u'\U0001F48A', u'\U0001F62E', u'\U0001F607', u'\U0001F320', u'\U0001F377'], [grid.lower, grid.num, grid.etc, grid.upper, grid.back, grid.enter]], dtype=np.unicode) self.gridLayout = grid.sym if refresh: self.refresh()
def getGridLocation(self, symbol): return np.where(self.grid == unicode(symbol))
