我有一个dict
类型的对象列表,这些对象Case
以dict
. 在 Python2 中运行时,我可以遍历键和值,以方便我使用该six
库的两个 Python 版本。
class Case:
def __init__(self, obj):
properties = {}
# standardize Boolean properties
true_values = ['1', 1, True, 'yes', 'Yes', 'YES']
false_values = ['0', 0, False, 'no', 'No', 'NO']
for (k, v) in iteritems(properties):
# standardize TRUE values
if v in true_values:
properties[k] = True
# standardize FALSE values
elif v in false_values:
properties[k] = False
# keep String values
elif isinstance(v, str):
continue
# remove NULL values
filtered = {k: v for (k, v) in iteritems(properties) if v != None}
# set Case instance attribute for each property
for (k, v) in iteritems(filtered):
setattr(self, k, v)
def __iter__(self):
return self
def __getitem__(self, key):
return self.__dict__.get(key, None)
def to_json(self):
return json.dumps(self, default=lambda o: o.__dict__)
当我遍历这个列表时,尽管遵循了six
文档,但我得到了一个 AttributeError 。
我遍历上述对象的列表:
from six import iteritems
def transform(case_list):
for case in case_list:
for (key, value) in iteritems(case): #crashes here
#do stuff
但是每次都会得到一个 AttributeError :
Traceback (most recent call last):
File "app/run.py", line 134, in <module>
main()
File "/home/user/other.py", line 55, in transform
for (key, value) in iteritems(case):
File "/home/user/env/lib/python3.4/site-packages/six-1.10.0-py3.4.egg/six.py", line 581, in iteritems
return iter(d.items(**kw))
AttributeError: 'Case' object has no attribute 'items'
我用python3 app/run.py
. 为什么它不识别可迭代对象?