update from atlas
This commit is contained in:
Luciano Ramalho
@@ -1,22 +0,0 @@
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def deco_alpha(func):
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print('<<100>> deco_alpha')
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def inner_alpha():
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print('<<200>> deco_alpha')
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func()
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return inner_alpha
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def deco_beta(cls):
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print('<<300>> deco_beta')
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def inner_beta(self):
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print('<<400>> inner_beta')
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print("result from 'deco_beta::inner_beta'")
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cls.method3 = inner_beta
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return cls
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print('<<500>> evaldecos mudule body')
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25
21-class-metaprog/evalsupport.py
Normal file
25
21-class-metaprog/evalsupport.py
Normal file
@@ -0,0 +1,25 @@
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print('<[100]> evalsupport module start')
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def deco_alpha(cls):
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print('<[200]> deco_alpha')
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def inner_1(self):
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print('<[300]> deco_alpha:inner_1')
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cls.method_y = inner_1
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return cls
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# BEGIN META_ALEPH
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class MetaAleph(type):
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print('<[400]> MetaAleph body')
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def __init__(self, name, bases, dic):
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print('<[500]> MetaAleph.__init__')
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def inner_2(self):
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print('<[600]> MetaAleph.__init__:inner_2')
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self.method_z = inner_2
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# END META_ALEPH
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print('<[700]> evalsupport module end')
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@@ -1,92 +1,49 @@
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import atexit
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from evalsupport import deco_alpha
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from evaldecos import deco_alpha
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from evaldecos import deco_beta
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print('<[1]> evaltime module start')
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print('<<1>> start')
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class ClassOne():
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print('<[2]> ClassOne body')
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def __init__(self):
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print('<[3]> ClassOne.__init__')
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func_A = lambda: print('<<2>> func_A')
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def __del__(self):
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print('<[4]> ClassOne.__del__')
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def method_x(self):
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print('<[5]> ClassOne.method_x')
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def func_B():
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print('<<3>> func_B')
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def func_C():
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print('<<4>> func_C')
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return func_C
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class ClassTwo(object):
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print('<[6]> ClassTwo body')
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@deco_alpha
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def func_D():
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print('<<6>> func_D')
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class ClassThree():
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print('<[7]> ClassThree body')
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def method_y(self):
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print('<[8]> ClassThree.method_y')
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def func_E():
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print('<<7>> func_E')
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class ClassFour(ClassThree):
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print('<[9]> ClassFour body')
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class ClassOne(object):
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print('<<7>> ClassOne body')
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def __init__(self):
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print('<<8>> ClassOne.__init__')
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def __del__(self):
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print('<<9>> ClassOne.__del__')
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def method1(self):
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print('<<10>> ClassOne.method')
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return "result from 'ClassOne.method1'"
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class ClassTwo(object):
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print('<<11>> ClassTwo body')
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@deco_beta
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class ClassThree(ClassOne):
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print('<<12>> ClassThree body')
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def method3(self):
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print('<<13>> ClassOne.method')
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return "result from 'ClassThree.method3'"
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if True:
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print("<<14>> 'if True'")
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if False:
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print("<<15>> 'if False'")
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atexit.register(func_E)
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print("<<16>> right before 'if ... __main__'")
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def method_y(self):
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print('<[10]> ClassFour.method_y')
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if __name__ == '__main__':
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print('<<17>> start __main__ block')
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print(func_A)
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print(func_A())
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print('<<18>> continue __main__ block')
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print(func_B)
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b_result = func_B()
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print(b_result)
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print('<[11]> ClassOne tests', 30 * '.')
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one = ClassOne()
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one.method1()
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b_result()
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print(func_D)
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func_D()
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one.method_x()
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print('<[12]> ClassThree tests', 30 * '.')
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three = ClassThree()
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three.method3()
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class ClassFour(object):
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print('<<19>> ClasFour body')
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print('<<20>> end __main__ block')
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three.method_y()
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print('<[13]> ClassFour tests', 30 * '.')
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four = ClassFour()
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four.method_y()
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print('<<21>> The End')
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print('<[14]> evaltime module end')
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53
21-class-metaprog/evaltime_meta.py
Normal file
53
21-class-metaprog/evaltime_meta.py
Normal file
@@ -0,0 +1,53 @@
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from evalsupport import deco_alpha
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from evalsupport import MetaAleph
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print('<[1]> evaltime_meta module start')
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@deco_alpha
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class ClassThree():
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print('<[2]> ClassThree body')
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def method_y(self):
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print('<[3]> ClassThree.method_y')
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class ClassFour(ClassThree):
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print('<[4]> ClassFour body')
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def method_y(self):
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print('<[5]> ClassFour.method_y')
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class ClassFive(metaclass=MetaAleph):
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print('<[6]> ClassFive body')
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def __init__(self):
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print('<[7]> ClassFive.__init__')
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def method_z(self):
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print('<[8]> ClassFive.method_y')
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class ClassSix(ClassFive):
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print('<[9]> ClassSix body')
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def method_z(self):
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print('<[10]> ClassSix.method_y')
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if __name__ == '__main__':
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print('<[11]> ClassThree tests', 30 * '.')
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three = ClassThree()
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three.method_y()
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print('<[12]> ClassFour tests', 30 * '.')
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four = ClassFour()
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four.method_y()
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print('<[13]> ClassFive tests', 30 * '.')
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five = ClassFive()
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five.method_z()
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print('<[14]> ClassSix tests', 30 * '.')
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six = ClassSix()
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six.method_z()
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print('<[15]> evaltime_meta module end')
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@@ -9,12 +9,12 @@ record_factory: create simple classes just for holding data fields
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>>> name, weight, _ = rex # <3>
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>>> name, weight
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('Rex', 30)
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>>> "{2}'s dog weights {1}kg".format(*rex)
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>>> "{2}'s dog weights {1}kg".format(*rex) # <4>
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"Bob's dog weights 30kg"
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>>> rex.weight = 32 # <4>
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>>> rex.weight = 32 # <5>
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>>> rex
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Dog(name='Rex', weight=32, owner='Bob')
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>>> Dog.__mro__ # <5>
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>>> Dog.__mro__ # <6>
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(<class 'factories.Dog'>, <class 'object'>)
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# END RECORD_FACTORY_DEMO
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@@ -22,29 +22,29 @@ record_factory: create simple classes just for holding data fields
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# BEGIN RECORD_FACTORY
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def record_factory(cls_name, field_names):
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if isinstance(field_names, str): # <1>
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if isinstance(field_names, str):
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field_names = field_names.replace(',', ' ').split()
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__slots__ = tuple(field_names)
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field_names = tuple(field_names) # <1>
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def __init__(self, *args, **kwargs):
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def __init__(self, *args, **kwargs): # <2>
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attrs = dict(zip(self.__slots__, args))
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attrs.update(kwargs)
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for name, value in attrs.items():
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setattr(self, name, value)
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def __iter__(self):
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def __iter__(self): # <3>
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for name in self.__slots__:
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yield getattr(self, name)
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def __repr__(self):
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def __repr__(self): # <4>
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values = ', '.join('{}={!r}'.format(*i) for i
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in zip(self.__slots__, self))
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return '{}({})'.format(self.__class__.__name__, values)
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cls_attrs = dict(__slots__ = __slots__,
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__init__ = __init__,
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__iter__ = __iter__,
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__repr__ = __repr__)
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cls_attrs = dict(__slots__ = field_names, # <5>
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__init__ = __init__,
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__iter__ = __iter__,
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__repr__ = __repr__)
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return type(cls_name, (object,), cls_attrs)
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return type(cls_name, (object,), cls_attrs) # <6>
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# END RECORD_FACTORY
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