我正在尝试通过将带有数据的 CSV 转换为 json 文件，然后使用 loaddata 将它们输入 Django 来将固定装置加载到我的 Django (1.4) 应用程序中。但我不断收到最大递归深度错误。我环顾四周，它似乎与 json 文件中的非 ASCII 字符有关。但是，我很确定我不会那样做？这是我的代码：
def csv_to_json(self,csv,dest,model,keys,sub):
#keys is a dict formatted x:f where x = index of value v;
#don't include pk
with open(csv) as f:
l = f.readlines()
right = len(l[0].split(","))
out = []
for x in xrange(1,len(l)):
if sub:
line = re.sub(", "," ",l[x])
line = re.sub(r'(,[\'\"*.]+|[\'\"*.]+,)','',l[x])
line = unicodedata.normalize('NFKD',unicode(line,'utf-8','ignore')).encode('ASCII','ignore')
line.encode('ASCII')
splt = line.split(",")
print len(splt)
if len(splt) == right:
for y in xrange(len(splt)):
if re.match(r'\d{4}-\d{2}-\d{2}',str(splt[y])):
splt[y] = int(splt[y][:4])
try:
if splt[y].isupper():
splt[y] = splt[y].title()
splt[y] = splt[y].rstrip()
except AttributeError:
continue
try:
splt[y] = int(splt[y])
except ValueError:
try:
splt[y] = float(splt[y])
except ValueError:
continue
d = {}
d["model"] = "dishes.%s"%(model)
d["pk"] = splt[0]
d["fields"] = {}
for k,v in keys.items():
print v,k
try:
d["fields"][v] = splt[k]
except IndexError:
continue
out.append(d)
with open(dest,"w") as f:
json_out = simplejson.dump(out,f,separators=(",",":"))
如您所见，我正在将 CSV 的内容简要转换为 UTF-8，以便使用 unicodedata 清除它们的变音符号（我必须这样做，因为我在尝试加载时收到“无效的延续字符”消息它们与loaddata），但随后我将所有内容都转换回ASCII。还是我？如果我是，那么导致递归问题的原因是什么？
ETA：这是完整的错误消息：
Problem installing fixture
'/Users/samuelraker/django/menus/menus/dishes/fixtures/Classification.json':
Traceback (most recent call last):
File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/commands/loaddata.py", line 190, in handle
for obj in objects:
File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/serializers/json.py", line 47, in Deserializer
raise DeserializationError(e)
DeserializationError: maximum recursion depth exceeded while calling a Python object
重新编辑以进一步添加：这是我尝试加载的 JSON 文件之一的片段。
[
{
"pk":1,
"model":"dishes.dish",
"fields":{
"name":"Consomme printaniere royal"
}
},
{
"pk":2,
"model":"dishes.dish",
"fields":{
"name":"Chicken gumbo"
}
},
{
"pk":3,
"model":"dishes.dish",
"fields":{
"name":"Tomato aux croutons"
}
},
{
"pk":4,
"model":"dishes.dish",
"fields":{
"name":"Onion au gratin"
}
},
{
"pk":5,
"model":"dishes.dish",
"fields":{
"name":"St. Emilion"
}
},
{
"pk":7,
"model":"dishes.dish",
"fields":{
"name":"Radishes"
}
},
{
"pk":8,
"model":"dishes.dish",
"fields":{
"name":"Chicken soup with rice"
}
},
{
"pk":9,
"model":"dishes.dish",
"fields":{
"name":"Clam broth (cup)"
}
},
{
"pk":11,
"model":"dishes.dish",
"fields":{
"name":"Clear green turtle"
}
},
{
"pk":13,
"model":"dishes.dish",
"fields":{
"name":"Anchovies"
}
},
{
"pk":14,
"model":"dishes.dish",
"fields":{
"name":"Fresh lobsters in every style"
}
},
{
"pk":15,
"model":"dishes.dish",
"fields":{
"name":"Celery"
}
},
{
"pk":16,
"model":"dishes.dish",
"fields":{
"name":"Pim-olas"
}
},
{
"pk":17,
"model":"dishes.dish",
"fields":{
"name":"Caviar"
}
},
{
"pk":18,
"model":"dishes.dish",
"fields":{
"name":"Sardines"
}
},
{
"pk":19,
"model":"dishes.dish",
"fields":{
"name":"India chutney"
}
},
{
"pk":20,
"model":"dishes.dish",
"fields":{
"name":"Pickles"
}
},
{
"pk":21,
"model":"dishes.dish",
"fields":{
"name":"English walnuts"
}
},
{
"pk":22,
"model":"dishes.dish",
"fields":{
"name":"Pate de foies-gras"
}
},
{
"pk":23,
"model":"dishes.dish",
"fields":{
"name":"Pomard"
}
},
{
"pk":26,
"model":"dishes.dish",
"fields":{
"name":"Clams"
}
},
{
"pk":27,
"model":"dishes.dish",
"fields":{
"name":"Oysters"
}
},
{
"pk":28,
"model":"dishes.dish",
"fields":{
"name":"Claremont planked shad"
}
},
...
编辑3：节日快乐！我只是将其中一个 JSON 文件的一小段粘贴到一个单独的文件中，通过 JSONLint 运行它以确保，然后将其传递给 loaddata ......我得到了同样的错误消息。我的模型可能有问题吗？
编辑 4：所以我尝试将我的数据编码为 YAML 而不是 JSON，但它不起作用。伙计们，我真的很难过。有人请帮忙！
编辑5：我什至尝试将我的数据库后端更改为django-mysql-pymysql（http://pypi.python.org/pypi/django-mysql-pymysql/0.1），但这也不起作用。任何人？请？