python3.7,django 2.21,for...in...Python int too large to convert to C long
def index(request):
    obj = datas.objects.all()   # 数据只有两条
    for foo in obj:
        print(foo)
    return render(request, 'index.html', {'obj': obj})

报以下错误:求帮助

Internal Server Error: /
Traceback (most recent call last):
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "E:\PythonProjects\SMMS\db\views.py", line 12, in index
    for foo in obj:
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\models\query.py", line 274, in __iter__
    self._fetch_all()
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\models\query.py", line 1242, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\models\query.py", line 55, in __iter__
    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\models\sql\compiler.py", line 1100, in execute_sql
    cursor.execute(sql, params)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\backends\utils.py", line 99, in execute
    return super().execute(sql, params)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\backends\utils.py", line 67, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\backends\utils.py", line 76, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "E:\PythonProjects\SMMS\venv\lib\site-packages\django\db\backends\sqlite3\base.py", line 383, in execute
    return Database.Cursor.execute(self, query, params)
  File "D:\Program Files\Python37\lib\sqlite3\dbapi2.py", line 64, in convert_date
    return datetime.date(*map(int, val.split(b"-")))
OverflowError: Python int too large to convert to C long

2个回答

原因为缺少依赖包导致,安全如下依赖包即可:

yum install sqlite-devel

dabaine
dabaine windows下需要引入什么包吗
9 个月之前 回复

首先重新建个项目看是否好使,重新写一个简单的模型类(一定是好使的)。
那么可以认为你现在的模型类设计有问题,其中的一些字段没有满足Field条件,先把认为问题的字段给屏蔽掉重新运行一次,查看结果。
你这个和我的报错结果是一样的,应该是时间字段设置有问题,可以查看一下。
PS:CSDN管理员这么Sb吗,追问一下都给删了,现在还要继续删吗?????????

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"/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line utility.execute() File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/core/management/__init__.py", line 330, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/core/management/base.py", line 390, in run_from_argv self.execute(*args, **cmd_options) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/core/management/base.py", line 441, in execute output = self.handle(*args, **options) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 221, in handle executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/migrations/executor.py", line 110, in migrate self.apply_migration(states[migration], migration, fake=fake, fake_initial=fake_initial) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/migrations/executor.py", line 147, in apply_migration state = migration.apply(state, schema_editor) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/migrations/migration.py", line 115, in apply operation.database_forwards(self.app_label, schema_editor, old_state, project_state) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/migrations/operations/models.py", line 59, in database_forwards schema_editor.create_model(model) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 286, in create_model self.execute(sql, params or None) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 111, in execute cursor.execute(sql, params) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/utils.py", line 79, in execute return super(CursorDebugWrapper, self).execute(sql, params) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute return self.cursor.execute(sql, params) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/utils.py", line 97, in __exit__ six.reraise(dj_exc_type, dj_exc_value, traceback) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/utils/six.py", line 658, in reraise raise value.with_traceback(tb) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/utils.py", line 62, in execute return self.cursor.execute(sql) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 124, in execute return self.cursor.execute(query, args) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/cursors.py", line 170, in execute result = self._query(query) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/cursors.py", line 328, in _query conn.query(q) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/connections.py", line 517, in query self._affected_rows = self._read_query_result(unbuffered=unbuffered) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/connections.py", line 732, in _read_query_result result.read() File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/connections.py", line 1075, in read first_packet = self.connection._read_packet() File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/connections.py", line 684, in _read_packet packet.check_error() File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/protocol.py", line 220, in check_error err.raise_mysql_exception(self._data) File "/home/huangdonglin/.virtualenvs/django_py3/lib/python3.6/site-packages/pymysql/err.py", line 109, in raise_mysql_exception raise errorclass(errno, errval)

pycharm Django setting.py文件配置问题

INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', # 'app1.apps.App1Config', 'app1', ] 注:最后一行本没有,我自己加上的。本来有加注释的这行(让我注释掉了)。 以上代码,我看别的教程是没有我加注释这行的,而我自己用pycharm建的Django项目 有加注释的这行。所有教程都说让我加上最后一行,而没有提注释这行,新手表示注释这行很奇怪啊,请问大神这行是干什么的??

python3 django models 调用出错

![图片说明](https://img-ask.csdn.net/upload/201708/08/1502160029_39827.png)![![图片说明](https://img-ask.csdn.net/upload/201708/08/1502159234_483138.png)图片说明](https://img-ask.csdn.net/upload/201708/08/1502159219_209781.png)[参考连接](http://www.runoob.com/django/django-model.html "demo") # models.py from django.db import models class Test(models.Model): name = models.CharField(max_length=20) #testdb.py from django.http import HttpResponse from TestModel.models import Test # 数据库操作 def testdb(request): test1 = Test(name='runoob') test1.save() return HttpResponse("<p>数据添加成功!</p>") 报错:ModuleNotFoundError: No module named 'Test'

Django配置MySQL,运行python manage.py startapp myapp 报错!!

python manage.py startapp myapp Traceback (most recent call last): File "manage.py", line 21, in <module> main() File "manage.py", line 17, in main execute_from_command_line(sys.argv) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line utility.execute() File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 357, in execute django.setup() File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\registry.py", line 114, in populate app_config.import_models() File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\config.py", line 211, in import_models self.models_module = import_module(models_module_name) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\importlib\__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1006, in _gcd_import File "<frozen importlib._bootstrap>", line 983, in _find_and_load File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 677, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 728, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\contrib\auth\models.py", line 2, in <module> from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module> class AbstractBaseUser(models.Model): File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\base.py", line 117, in __new__ new_class.add_to_class('_meta', Options(meta, app_label)) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\base.py", line 321, in add_to_class value.contribute_to_class(cls, name) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\options.py", line 204, in contribute_to_class self.db_table = truncate_name(self.db_table, connection.ops.max_name_length()) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\__init__.py", line 28, in __getattr__ return getattr(connections[DEFAULT_DB_ALIAS], item) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\utils.py", line 201, in __getitem__ backend = load_backend(db['ENGINE']) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\utils.py", line 110, in load_backend return import_module('%s.base' % backend_name) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\importlib\__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\backends\mysql\base.py", line 36, in <module> raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__) django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3. da

关于django执行python manage.py syncdb命令却缺少自己所需要建的models.py内的表

在django项目中的settings.py文件中的_app代码,数据库没问题,可以连接上,但是:python manage.py syncdb命令却无法生成自己models.py内所定义的实体类表。 INSTALLED_APPS = ( 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'west', ) models.py内的代码 from django.db import models class Employee(models.Model): name = models.CharField(max_length=200) 谁能帮我看看这是怎么回事,查了很多资料还是无法解决。

No module named 'django.db.backends.mysql

![图片说明](https://img-ask.csdn.net/upload/201708/16/1502882500_765584.png) 在本地测试一切正常,一旦上传服务器就报这样的错误。python3.4+mysql5.6+pymysql

django创建项目时,urls.py报错:No module named 'index.urls'

django创建音乐网站项目时,urls.py写入代码后,pycharm一直报错: No module named 'index.urls' 用idle运行时候就报错: Requested setting INSTALLED_APPS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings. 创建过程中只修改了urls.py 和setting.py 文件 代码如下: [b]urls.py[/b] from django.contrib import admin from django.urls import path, include from django.conf.urls import url from django.views import static from django.conf import settings urlpatterns = [ path('admin/', admin.site.urls), path('', include('index.urls')), path('ranking.html', include('ranking.urls')), path('play/', include('play.urls')), path('comment/', include('comment.urls')), path('search/', include('search.urls')), path('user/', include('user.urls')), ] [b]settings.py[/b] (部分代码) INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'index', 'ranking', 'user', 'play', 'search', 'comment', ] MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', # 使用中文 'django.middleware.locale.LocaleMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ] ROOT_URLCONF = 'music.urls' TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [ os.path.join(BASE_DIR, 'templates'), os.path.join(BASE_DIR, 'index/templates'), os.path.join(BASE_DIR, 'ranking/templates'), os.path.join(BASE_DIR, 'user/templates'), os.path.join(BASE_DIR, 'play/templates'), os.path.join(BASE_DIR, 'comment/templates'), ], 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ] WSGI_APPLICATION = 'music.wsgi.application' DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'music_db', 'USER': 'root', 'PASSWORD': '1234', 'HOST': '127.0.0.1', 'POST': '3306', } } 请问这种情况该如何处理呢?求指点

django.db.utils.OperationalError: disk I/O error

这怎么解决呀? 今天想删除数据库,重新配置以下,结果输入python manage.py makemigrations 后就出现这样的错误

Django出现TemplateDoesNotExist

如题,昨天在用Django进行web制作时,运行后出现TemplateDoesNotExist![图片说明](https://img-ask.csdn.net/upload/201803/18/1521368429_342791.jpg) 在网上查了很多资料,大多都是改setting.py里的DIR,但是我都试过了还是没有用。 最后我返回那个网页看到有两行django.template.loaders.app_directories.Loader: C:\Users\60243\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\admin\templates\lalala.html (Source does not exist) django.template.loaders.app_directories.Loader: C:\Users\60243\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\auth\templates\lalala.html (Source does not exist) 说实在auth和admin找不到我的html文件,后来我就照着路径把文件放进去,发现可以显示页面了。 但是我每次新作一个网页都得重新把html手动放在那两个文件夹里,感觉很麻烦,想问问大家有没有什么方法能够直接运行就能在那两个文件夹里生成写好的html??

Django已有的model表新增字段,执行migrate报错:django.db.utils.DatabaseError:ORA-00955: name is already used by an existing object,出现重名是啥情况。。。

Django已有的model表新增字段,执行migrate报错:django.db.utils.DatabaseError:ORA-00955: name is already used by an existing object,出现重名是啥情况。。。

django项目 makemigrations时出现nodenotfounderror错误。

如题 makemigrations时出现 django.db.migrations.graph.NodeNotFoundError: Migration blog.0001_initial dependencies reference nonexistent parent node (u'auth', u'0007_alter_validators_add_error_messages')错误 求大家解答! 问题源文件: # -*- coding: utf-8 -*- # Generated by Django 1.9 on 2016-02-24 10:34 from __future__ import unicode_literals import blog.models from django.conf import settings import django.contrib.auth.models import django.core.validators from django.db import migrations, models import django.db.models.deletion import django.utils.timezone class Migration(migrations.Migration): initial = True dependencies = [ ('tagging', '0001_initial'), ('auth', '0007_alter_validators_add_error_messages'), ] operations = [ migrations.CreateModel( name='User', fields=[ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), ('password', models.CharField(max_length=128, verbose_name='password')), ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')), ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')), ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=30, unique=True, validators=[django.core.validators.RegexValidator('^[\\w.@+-]+$', 'Enter a valid username. This value may contain only letters, numbers and @/./+/-/_ characters.')], verbose_name='username')), ('first_name', models.CharField(blank=True, max_length=30, verbose_name='first name')), ('last_name', models.CharField(blank=True, max_length=30, verbose_name='last name')), ('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')), ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')), ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')), ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')), ('name', models.CharField(max_length=12)), ('avatar_path', models.ImageField(default='/static/image/avatar_default.jpg', upload_to='/avatar')), ], options={ 'abstract': False, 'verbose_name': 'user', 'verbose_name_plural': 'users', }, managers=[ ('objects', django.contrib.auth.models.UserManager()), ], ), migrations.CreateModel( name='Carousel', fields=[ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), ('title', models.CharField(max_length=100)), ('img', models.ImageField(upload_to='/carousel')), ('create_time', models.DateTimeField(auto_now_add=True)), ], options={ 'ordering': ['-create_time'], }, ), migrations.CreateModel( name='Catalogue', fields=[ ('name', models.CharField(max_length=20, primary_key=True, serialize=False)), ], ), migrations.CreateModel( name='Comment', fields=[ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), ('publish_Time', models.DateTimeField(auto_now_add=True)), ('ip_address', models.GenericIPAddressField()), ('content', models.CharField(max_length=200)), ('isDelete', models.BooleanField(default=False)), ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)), ], ), migrations.CreateModel( name='Editor', fields=[ ('name', models.CharField(max_length=20, primary_key=True, serialize=False)), ('avaliable', models.BooleanField(default=True)), ], ), migrations.CreateModel( name='Post', fields=[ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), ('title', models.CharField(max_length=100)), ('publish_time', models.DateTimeField(auto_now_add=True)), ('modify_time', models.DateTimeField(auto_now_add=True)), ('content', models.TextField()), ('tag', blog.models.TagField_Mine(blank=True, max_length=255)), ('view_count', models.IntegerField(default=0, editable=False)), ('status', models.SmallIntegerField(choices=[(0, '\u8349\u7a3f'), (1, '\u53d1\u5e03'), (2, '\u5220\u9664')], default=0)), ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)), ('catalogue', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.Catalogue')), ('editor_choice', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.Editor')), ], options={ 'ordering': ['-modify_time'], }, ), migrations.CreateModel( name='Repository', fields=[ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), ('title', models.CharField(max_length=100)), ('publish_time', models.DateTimeField(auto_now_add=True)), ('author', models.CharField(max_length=20)), ('content', models.TextField()), ('view_count', models.IntegerField(default=0, editable=False)), ('tag', models.ManyToManyField(blank=True, default='', to='tagging.Tag')), ], options={ 'ordering': ['-publish_time'], }, ), migrations.AddField( model_name='comment', name='post', field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.Post'), ), migrations.AddField( model_name='carousel', name='post', field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.Post'), ), migrations.AddField( model_name='user', name='editor_choice', field=models.ForeignKey(blank=True, default='tinyMCE', null=True, on_delete=django.db.models.deletion.CASCADE, to='blog.Editor'), ), migrations.AddField( model_name='user', name='groups', field=models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.Group', verbose_name='groups'), ), migrations.AddField( model_name='user', name='user_permissions', field=models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions'), ), ]

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