“django.core.exceptions.AppRegistryNotReady:应用程序尚未加载"尝试将数据加载到我的模型中时 [英] "django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet" when trying to load data into my model
问题描述
我正在 Django 中开发一个应用程序.
I am developing an app in Django.
我想在我的模型中加载数据，即 glossary_entry，但数据存储在一个 xlsx 文件中，即 dati_prova.xlsx.
I want to load data inside my model, that is glossary_entry, but the data is stored inside an xlsx file, that is dati_prova.xlsx.
为了实现这一点，我开发了以下脚本:
In order to achieve this, I have developed the following script:
import pandas as pd
from django.conf import settings
settings.configure()
from myapp.models import glossary_entry #this is line 7
path=r"mypathdati_prova.xlsx"
with open(path) as f:
reader = pd.read_excel(f)
next(reader, None) # skip the headers
for row in reader:
_, created = glossary_entry.objects.get_or_create(
Lemma = row[0],
Acronym = row[1],
Definizione = row[2],
)
# creates a tuple of the new object or
# current object and a boolean of if it was created
但是当我从 Anaconda 提示符运行它时，我得到
But when I run it from Anaconda prompt, I get
文件load_glossary.py"，第 7 行，在模块中...
File "load_glossary.py", line 7, in module ...
raise AppRegistryNotReady("应用程序尚未加载.")django.core.exceptions.AppRegistryNotReady:应用程序尚未加载.
raise AppRegistryNotReady("Apps aren't loaded yet.") django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
有什么问题吗?
请注意:
我的应用运行良好，只是上传数据脚本失败.
My app runs fine, just the uploading-data script fails.
请注意:
我复制粘贴
from django.conf import settings
settings.configure()
来自堆栈溢出的答案，因为我收到了错误:
from stack overflow answers because I was getting the error:
django.core.exceptions.ImproperlyConfigured:请求设置 USE_TZ，但未配置设置.您必须要么定义环境变量 DJANGO_SETTINGS_MODULE 或调用settings.configure() 在访问设置之前.
django.core.exceptions.ImproperlyConfigured: Requested setting USE_TZ, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
但我没有经验，也不明白错误是什么.
but I don't have experience and I don't understand what was the error.
------------------- 更新----------------------
我已阅读 https://groups.google.com/forum/#!topic/django-users/bF_lRbzzguA 可能是那个
I have read on https://groups.google.com/forum/#!topic/django-users/bF_lRbzzguA that it could be that
问题是您的应用程序之一导入模型在其顶级 init.py 中.这是不支持的；为解释，你可以阅读https://docs.djangoproject.com/en/1.9/ref/applications/#how-applications-are-loaded
The problem is that one of your applications imports models in its top-level init.py. This is not supported; for an explanation, you can read https://docs.djangoproject.com/en/1.9/ref/applications/#how-applications-are-loaded
------------------- 更新----------------------
我将文件更改如下:
import pandas as pd
from django.conf import settings
settings.configure()
import django
django.setup()
from myapp.models import mymodel
path=r"mypathdati_prova.xlsx"
with open(path) as f:
reader = pd.read_excel(f)
next(reader, None) # skip the headers
现在我明白了:
运行时错误:模型类 myapp.models.mymodel 未声明显式 app_label 并且不在 INSTALLED_APPS 中的应用程序中.
RuntimeError: Model class myapp.models.mymodel doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
但事实并非如此，因为我在 settings.py 中写了我的应用程序名称，并且项目运行良好.只是脚本不起作用...就像 python 无法读取我的 settings.py .有什么问题?也许是在读另一套
But it is not true, since in settings.py I wrote my app name, and the project runs fine. Just the script does not work... It is like python cannot read my settings.py . What's the problem? Maybe is it reading another set
------------------- 更新----------------------
正如这里的建议 https://stackoverflow.com/a/38821174/7658051
我已将我的脚本 load_glossary.py 移动到
As suggested here https://stackoverflow.com/a/38821174/7658051
I have moved my script load_glossary.py into
myapp>管理>命令
myapp>management>commands
将我的 xlsx 文件复制到一个 csv
并更新代码如下:
made a copy of my xlsx file into a csv one
and updated the code as follows:
# myapp/management/commands/load_glossary.py
from django.core.management.base import BaseCommand, CommandError
import csv
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('csv_file', nargs='+', type=str)
def handle(self, *args, **options):
for csv_file in options['csv_file']:
dataReader = csv.reader(open(csv_file), delimiter=',', quotechar='"')
for row in dataReader:
Lemma=row[0],
Acronym=row[1],
Definition=row[2],
# etc...
self.stdout.write(
'Created glossary entry'
)
我正在通过输入 anaconda prompt 来解决它
And I am lunching it by typing into anaconda prompt
python ./manage.py load_glossary csv_file "mypathdati_prova.csv"
但后来我明白了
第 20 行，在句柄中dataReader = csv.reader(open(csv_file), delimiter=',', quotechar='"') FileNotFoundError: [Errno 2] 没有这样的文件或目录:'csv_file'
line 20, in handle dataReader = csv.reader(open(csv_file), delimiter=',', quotechar='"') FileNotFoundError: [Errno 2] No such file or directory: 'csv_file'
这次怎么了?
推荐答案
我通过替换这个解决了这个问题:
I solved the problem by substituting this:
import pandas as pd
from django.conf import settings
settings.configure()
from myapp.models import glossary_entry #this is line 7
path=r"mypathdati_prova.xlsx"
with open(path) as f:
reader = pd.read_excel(f)
next(reader, None) # skip the headers
for row in reader:
_, created = glossary_entry.objects.get_or_create(
Lemma = row[0],
Acronym = row[1],
Definizione = row[2],
)
# creates a tuple of the new object or
# current object and a boolean of if it was created
这样:
import pandas as pd
from myapp.models import glossary_entry
def pour_entire_entry_model():
elements = glossary_entry.objects.all()
for element in elements:
entry = acquired_terminology.objects.create()
entry.Lemma = element.Lemma
entry.Acronym = element.Acronym
entry.Definizione = element.Definizione
# creates a tuple of the new object or
# current object and a boolean of if it was created
这篇关于“django.core.exceptions.AppRegistryNotReady:应用程序尚未加载"尝试将数据加载到我的模型中时的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
