python - Django dateutil ISO 8601 没有 'read' 属性错误

Question

我在 Django View 中将日期时间转换为 ISO 8601 以推送到 Facebook 页面事件。我试过 datetime.strptime 但是 following best advice我选择了:

    eventdate = event.date
    print eventdate
    date_iso = dateutil.parser.parse(eventdate)

当我打印 2013-06-18 02:50:00 时，eventdate 在控制台中看起来像这样，但在我得到之前它没有进一步:

Django Version: 1.4.1
Exception Type: AttributeError
Exception Value:    
'datetime.datetime' object has no attribute 'read'
Exception Location: /Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages/dateutil/parser.py in get_token, line 72
Python Executable:  /Users/mirth/.virtualenvs/ssc/bin/python
Python Version: 2.7.2
Python Path:    
['/Users/mirth/code/django/ssc',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages/requests/packages',
 '/Users/mirth/code/django/ssc/main',
 '/Users/mirth/code/django/ssc/main/../',
 '/Users/mirth/code/django/ssc',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg',
 '/Users/mirth/.virtualenvs/ssc/lib/python27.zip',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/plat-darwin',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/plat-mac',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/plat-mac/lib-scriptpackages',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/lib-tk',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/lib-old',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/lib-dynload',
 '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
 '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
 '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
 '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
 '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages',
 '/Users/mirth/.virtualenvs/ssc/lib/python2.7/site-packages/PIL']

这会是什么？谢谢

Answer 1

我可以像这样重现错误消息:

In [58]: import datetime as DT

In [59]: eventdate = DT.datetime(2013, 6, 18, 2, 50)
In [60]: print(eventdate)
2013-06-18 02:50:00

In [61]: import dateutil.parser as parser
In [62]: parser.parse(eventdate)
AttributeError: 'datetime.datetime' object has no attribute 'read'

因此在此基础上，似乎 eventdate 可能已经是一个 datetime.datetime 对象。如果是，则无需调用

date_iso = dateutil.parser.parse(eventdate)

要将其转换为 ISO8601 格式的 string，请使用

In [66]: eventdate.isoformat()
Out[66]: '2013-06-18T02:50:00'