推荐学习书目
› Learn Python the Hard Way
Python Sites
› PyPI - Python Package Index
› http://diveintopython.org/toc/index.html
› Pocoo
值得关注的项目
› PyPy
› Celery
› Jinja2
› Read the Docs
› gevent
› pyenv
› virtualenv
› Stackless Python
› Beautiful Soup
› 结巴中文分词
› Green Unicorn
› Sentry
› Shovel
› Pyflakes
› pytest
Python 编程
› pep8 Checker
Styles
› PEP 8
› Google Python Style Guide
› Code Style from The Hitchhiker's Guide
Python manage.py migrate 时。总时出现这个 warnings 是什么意思？
python30 · 2018-04-27 20:36:55 +08:00 · 5027 次点击这是一个创建于 2190 天前的主题，其中的信息可能已经有所发展或是发生改变。
C:\Users\MrTong\Desktop\django\EasyCRM>Python manage.py migrate
System check identified some issues:
WARNINGS:
crm.Customer.tags: (fields.W340) null has no effect on ManyToManyField.
crm.UserProfile.roles: (fields.W340) null has no effect on ManyToManyField.
System check identified some issues:
WARNINGS:
crm.Customer.tags: (fields.W340) null has no effect on ManyToManyField.
crm.UserProfile.roles: (fields.W340) null has no effect on ManyToManyField.
 |
1
georgema1982 2018-04-28 02:23:06 +08:00
你在 ManyToManyField 上有个 null 的参数。migration 提醒你 null 在 ManyToManyField 上无效
|
 |
2
python30 OP 多谢。
|
Select Language