class_name = t.__name__
bases = t.__bases__
bases_names = [b.__name__ for b in bases]
if not self.name in bases_names + [class_name]:
msg = (
'Failed check isinstance(%s) for type %r and superclasses %r.'
% (self.name, class_name, bases_names))
raise ContractNotRespected(self, msg, value, context)
def __str__(self):
return 'isinstance(%s)' % self.name
def __repr__(self):
return 'IsInstance(%r)' % self.name
@staticmethod
def parse_action(s, loc, tokens):
where = W(s, loc)
name = tokens['name']
return IsInstance(name, where)
Identifier = Word(alphanums + '_')
isinstance_contract = (Keyword('isinstance') - S('(') - Identifier('name') -
S(')'))
add_contract(isinstance_contract.setParseAction(IsInstance.parse_action))
add_keyword('isinstance')
import numpy as np
np_types = {
'np_int': np.int, # Platform integer (normally either int32 or int64)
'np_int8': np.int8, # Byte (-128 to 127)
'np_int16': np.int16, # Integer (-32768 to 32767)
'np_int32': np.int32, # Integer (-2147483648 to 2147483647)
'np_int64':
np.int64, # Integer (9223372036854775808 to 9223372036854775807)
'np_uint8': np.uint8, # Unsigned integer (0 to 255)
'np_uint16': np.uint16, # Unsigned integer (0 to 65535)
'np_uint32': np.uint32, # Unsigned integer (0 to 4294967295)
'np_uint64': np.uint64, # Unsigned integer (0 to 18446744073709551615)
'np_float': np.float, # Shorthand for float64.
'np_float16': np.
float16, # Half precision float: sign bit, 5 bits exponent, 10 bits mantissa
'np_float32': np.
float32, # Single precision float: sign bit, 8 bits exponent, 23 bits mantissa
'np_float64': np.
float64, # Double precision float: sign bit, 11 bits exponent, 52 bits mantissa
'np_complex': np.complex, # Shorthand for complex128.
'np_complex64': np.
complex64, # Complex number, represented by two 32-bit floats (real and imaginary components)
'np_complex128': np.complex128
}
for k, t in np_types.items():
add_contract(Keyword(k).setParseAction(CheckType.parse_action(t)))
add_keyword(k)
if hasattr(value, '__class__'):
# old style class
klass = value.__class__
class_name = klass.__name__
bases = get_oldstyle_bases(klass)
bases_names = [x.__name__ for x in bases]
else:
# new style
t = type(value)
class_name = t.__name__
bases_names = [b.__name__ for b in t.mro()]
return class_name, bases_names
def get_oldstyle_bases(klass):
todo = [klass]
res = []
while todo:
x = todo.pop(0)
res.append(x)
for b in x.__bases__:
if not b in res:
todo.append(b)
return res
Identifier = Word(alphanums + '_')
isinstance_contract = (Keyword('isinstance') - S('(') - Identifier('name') - S(')'))
add_contract(isinstance_contract.setParseAction(IsInstance.parse_action))
add_keyword('isinstance')
use_dtype = dtype
return DType(use_dtype, dtype_string, where)
return parse
import numpy as np
np_types = {
'np_int': np.int, # Platform integer (normally either int32 or int64)
'np_int8': np.int8, # Byte (-128 to 127)
'np_int16': np.int16, # Integer (-32768 to 32767)
'np_int32': np.int32, # Integer (-2147483648 to 2147483647)
'np_int64': np.int64, # Integer (9223372036854775808 to 9223372036854775807)
'np_uint8': np.uint8, # Unsigned integer (0 to 255)
'np_uint16': np.uint16, # Unsigned integer (0 to 65535)
'np_uint32': np.uint32, # Unsigned integer (0 to 4294967295)
'np_uint64': np.uint64, # Unsigned integer (0 to 18446744073709551615)
'np_float': np.float, # Shorthand for float64.
'np_float16': np.float16, # Half precision float: sign bit, 5 bits exponent, 10 bits mantissa
'np_float32': np.float32, # Single precision float: sign bit, 8 bits exponent, 23 bits mantissa
'np_float64': np.float64, # Double precision float: sign bit, 11 bits exponent, 52 bits mantissa
'np_complex': np.complex, # Shorthand for complex128.
'np_complex64': np.complex64, # Complex number, represented by two 32-bit floats (real and imaginary components)
'np_complex128': np.complex128}
for k, t in np_types.items():
add_contract(Keyword(k).setParseAction(CheckType.parse_action(t)))
add_keyword(k)