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# test __getattr__
class A:
def __init__(self, d):
self.d = d
def __getattr__(self, attr):
return self.d[attr]
a = A({'a':1, 'b':2})
print(a.a, a.b)
# test that any exception raised in __getattr__ propagates out
class A:
def __getattr__(self, attr):
if attr == "value":
raise ValueError(123)
else:
raise AttributeError(456)
a = A()
try:
a.value
except ValueError as er:
print(er)
try:
a.attr
except AttributeError as er:
print(er)
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