回答此问题可获得 20 贡献值,回答如果被采纳可获得 50 分。
<p>我刚刚将django1.6.5项目升级到django1.7.1。我按照文档中记录的步骤从South迁移到django1.7.1,它工作得非常好。在</p>
<p>我遇到的问题是当我运行“python”时管理.py“在我的项目中,它失败了,错误是:</p>
<pre><code>Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/test/runner.py", line 147, in run_tests
old_config = self.setup_databases()
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/test/runner.py", line 109, in setup_databases
return setup_databases(self.verbosity, self.interactive, **kwargs)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/test/runner.py", line 299, in setup_databases
serialize=connection.settings_dict.get("TEST", {}).get("SERIALIZE", True),
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/backends/creation.py", line 377, in create_test_db
test_flush=True,
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 115, in call_command
return klass.execute(*args, **defaults)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 160, in handle
executor.migrate(targets, plan, fake=options.get("fake", False))
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/migrations/executor.py", line 63, in migrate
self.apply_migration(migration, fake=fake)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/migrations/executor.py", line 97, in apply_migration
migration.apply(project_state, schema_editor)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/migrations/migration.py", line 107, in apply
operation.database_forwards(self.app_label, schema_editor, project_state, new_state)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/migrations/operations/models.py", line 36, in database_forwards
schema_editor.create_model(model)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/backends/schema.py", line 209, in create_model
definition, extra_params = self.column_sql(model, field)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/backends/schema.py", line 121, in column_sql
default_value = self.effective_default(field)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/backends/schema.py", line 184, in effective_default
default = field.get_db_prep_save(default, self.connection)
File "/home/mark/.virtualenvs/clippy/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 627, in get_db_prep_save
prepared=False)
File "/home/mark/projects/clippy/core/fields.py", line 21, in get_db_prep_value
return int(time.mktime(value.timetuple()))
AttributeError: 'NoneType' object has no attribute 'timetuple'
</code></pre>
<p>我相信这是因为我使用一个自定义字段将日期/时间字段作为时间戳整数存储在数据库中。代码是:</p>
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<p>即使我从项目中删除所有单元测试,也会发生这种情况。有人知道是什么引起的吗?在升级到django1.7.1之前,它运行得很好。在</p>