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289 lines
7.6 KiB
Python
289 lines
7.6 KiB
Python
"""
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Standard container-class for easy multiple-inheritance.
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Try to inherit from the ndarray instead of using this class as this is not
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complete.
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"""
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from __future__ import division, absolute_import, print_function
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from numpy.core import (
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array, asarray, absolute, add, subtract, multiply, divide,
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remainder, power, left_shift, right_shift, bitwise_and, bitwise_or,
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bitwise_xor, invert, less, less_equal, not_equal, equal, greater,
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greater_equal, shape, reshape, arange, sin, sqrt, transpose
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)
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from numpy.compat import long
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class container(object):
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"""
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container(data, dtype=None, copy=True)
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Standard container-class for easy multiple-inheritance.
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Methods
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-------
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copy
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tostring
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byteswap
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astype
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"""
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def __init__(self, data, dtype=None, copy=True):
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self.array = array(data, dtype, copy=copy)
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def __repr__(self):
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if self.ndim > 0:
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return self.__class__.__name__ + repr(self.array)[len("array"):]
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else:
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return self.__class__.__name__ + "(" + repr(self.array) + ")"
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def __array__(self, t=None):
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if t:
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return self.array.astype(t)
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return self.array
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# Array as sequence
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def __len__(self):
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return len(self.array)
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def __getitem__(self, index):
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return self._rc(self.array[index])
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def __setitem__(self, index, value):
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self.array[index] = asarray(value, self.dtype)
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def __abs__(self):
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return self._rc(absolute(self.array))
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def __neg__(self):
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return self._rc(-self.array)
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def __add__(self, other):
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return self._rc(self.array + asarray(other))
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__radd__ = __add__
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def __iadd__(self, other):
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add(self.array, other, self.array)
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return self
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def __sub__(self, other):
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return self._rc(self.array - asarray(other))
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def __rsub__(self, other):
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return self._rc(asarray(other) - self.array)
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def __isub__(self, other):
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subtract(self.array, other, self.array)
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return self
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def __mul__(self, other):
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return self._rc(multiply(self.array, asarray(other)))
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__rmul__ = __mul__
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def __imul__(self, other):
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multiply(self.array, other, self.array)
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return self
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def __div__(self, other):
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return self._rc(divide(self.array, asarray(other)))
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def __rdiv__(self, other):
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return self._rc(divide(asarray(other), self.array))
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def __idiv__(self, other):
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divide(self.array, other, self.array)
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return self
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def __mod__(self, other):
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return self._rc(remainder(self.array, other))
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def __rmod__(self, other):
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return self._rc(remainder(other, self.array))
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def __imod__(self, other):
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remainder(self.array, other, self.array)
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return self
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def __divmod__(self, other):
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return (self._rc(divide(self.array, other)),
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self._rc(remainder(self.array, other)))
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def __rdivmod__(self, other):
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return (self._rc(divide(other, self.array)),
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self._rc(remainder(other, self.array)))
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def __pow__(self, other):
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return self._rc(power(self.array, asarray(other)))
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def __rpow__(self, other):
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return self._rc(power(asarray(other), self.array))
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def __ipow__(self, other):
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power(self.array, other, self.array)
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return self
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def __lshift__(self, other):
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return self._rc(left_shift(self.array, other))
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def __rshift__(self, other):
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return self._rc(right_shift(self.array, other))
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def __rlshift__(self, other):
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return self._rc(left_shift(other, self.array))
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def __rrshift__(self, other):
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return self._rc(right_shift(other, self.array))
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def __ilshift__(self, other):
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left_shift(self.array, other, self.array)
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return self
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def __irshift__(self, other):
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right_shift(self.array, other, self.array)
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return self
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def __and__(self, other):
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return self._rc(bitwise_and(self.array, other))
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def __rand__(self, other):
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return self._rc(bitwise_and(other, self.array))
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def __iand__(self, other):
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bitwise_and(self.array, other, self.array)
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return self
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def __xor__(self, other):
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return self._rc(bitwise_xor(self.array, other))
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def __rxor__(self, other):
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return self._rc(bitwise_xor(other, self.array))
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def __ixor__(self, other):
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bitwise_xor(self.array, other, self.array)
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return self
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def __or__(self, other):
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return self._rc(bitwise_or(self.array, other))
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def __ror__(self, other):
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return self._rc(bitwise_or(other, self.array))
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def __ior__(self, other):
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bitwise_or(self.array, other, self.array)
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return self
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def __pos__(self):
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return self._rc(self.array)
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def __invert__(self):
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return self._rc(invert(self.array))
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def _scalarfunc(self, func):
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if self.ndim == 0:
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return func(self[0])
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else:
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raise TypeError(
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"only rank-0 arrays can be converted to Python scalars.")
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def __complex__(self):
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return self._scalarfunc(complex)
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def __float__(self):
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return self._scalarfunc(float)
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def __int__(self):
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return self._scalarfunc(int)
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def __long__(self):
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return self._scalarfunc(long)
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def __hex__(self):
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return self._scalarfunc(hex)
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def __oct__(self):
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return self._scalarfunc(oct)
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def __lt__(self, other):
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return self._rc(less(self.array, other))
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def __le__(self, other):
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return self._rc(less_equal(self.array, other))
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def __eq__(self, other):
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return self._rc(equal(self.array, other))
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def __ne__(self, other):
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return self._rc(not_equal(self.array, other))
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def __gt__(self, other):
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return self._rc(greater(self.array, other))
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def __ge__(self, other):
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return self._rc(greater_equal(self.array, other))
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def copy(self):
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""
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return self._rc(self.array.copy())
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def tostring(self):
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""
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return self.array.tostring()
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def byteswap(self):
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""
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return self._rc(self.array.byteswap())
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def astype(self, typecode):
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""
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return self._rc(self.array.astype(typecode))
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def _rc(self, a):
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if len(shape(a)) == 0:
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return a
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else:
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return self.__class__(a)
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def __array_wrap__(self, *args):
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return self.__class__(args[0])
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def __setattr__(self, attr, value):
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if attr == 'array':
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object.__setattr__(self, attr, value)
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return
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try:
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self.array.__setattr__(attr, value)
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except AttributeError:
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object.__setattr__(self, attr, value)
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# Only called after other approaches fail.
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def __getattr__(self, attr):
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if (attr == 'array'):
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return object.__getattribute__(self, attr)
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return self.array.__getattribute__(attr)
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#############################################################
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# Test of class container
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#############################################################
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if __name__ == '__main__':
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temp = reshape(arange(10000), (100, 100))
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ua = container(temp)
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# new object created begin test
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print(dir(ua))
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print(shape(ua), ua.shape) # I have changed Numeric.py
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ua_small = ua[:3, :5]
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print(ua_small)
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# this did not change ua[0,0], which is not normal behavior
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ua_small[0, 0] = 10
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print(ua_small[0, 0], ua[0, 0])
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print(sin(ua_small) / 3. * 6. + sqrt(ua_small ** 2))
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print(less(ua_small, 103), type(less(ua_small, 103)))
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print(type(ua_small * reshape(arange(15), shape(ua_small))))
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print(reshape(ua_small, (5, 3)))
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print(transpose(ua_small))
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