错误环境

使用Django框架创建完models类的之后,用python manage.py migrate命令来生成数据库表的时候出错

错误代码

Operations to perform:
Apply all migrations: SMS, admin, auth, contenttypes, sessions
Running migrations:
Running migrations:
Traceback (most recent call last):
File "manage.py", line , in <module>
execute_from_command_line(sys.argv)
File "C:\python35\lib\site-packages\django\core\management\__init__.py", line , in execute_from_command_line
utility.execute()
File "C:\python35\lib\site-packages\django\core\management\__init__.py", line , in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\python35\lib\site-packages\django\core\management\base.py", line , in run_from_argv
self.execute(*args, **cmd_options)
self.execute(*args, **cmd_options)
File "C:\python35\lib\site-packages\django\core\management\base.py", line , in execute
output = self.handle(*args, **options)
File "C:\python35\lib\site-packages\django\core\management\commands\migrate.py", line , in handle
self.stdout.write(self.style.MIGRATE_HEADING("Running migrations:"))
File "C:\python35\lib\site-packages\django\core\management\base.py", line , in write
self._out.write(force_str(style_func(msg)))
OSError: raw write() returned invalid length (should have been between and )

错误原因

与win10系统、版本有关系

可能是unicode字符的返回值问题

解决办法

可以使用pip install win_unicode_console安装win_unicode_console,在代码文件中添加以下两行代码解决:

import win_unicode_console
win_unicode_console.enable()

  

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