Question

我有一个virtualenv venv我在其中安装了mx-base和psycopg2与pip：

$ pip freeze | grep "psyco\|mx"
egenix-mx-base==3.2.8
psycopg2==2.6

psycopg2的基础知识有效，但在使用扩展程序时，我会遇到以下异常：

Traceback (most recent call last):
  File "/my_proj/my_code.py", line 32, in <module>
    register_types()
  File "/my_proj/my_code.py", line 28, in register_types 
    psycopg2.extensions.register_type(psycopg2._psycopg.MXDATETIME)
AttributeError: 'module' object has no attribute 'MXDATETIME'

或者：

ulf@kalla:~(0)(venv)$ python
Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>> #Use mx.DateTime instead of pythons datetime, for compability reasons.
... psycopg2.extensions.register_type(psycopg2._psycopg.MXDATETIME)
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
AttributeError: 'module' object has no attribute 'MXDATETIME'
>>>

似乎已安装的psycopg2版本缺少mx - 支持。

我该如何解决这个问题？

Answer 1

您可能需要自己构建psycopg2，下载tar.gz，解压缩，然后找到setup.cfg文件，将mx_include参数修改为/lib/python2.7/site-packages/mx/ DateTime / mxDateTime然后

python setup.py build_ext install

如何在支持mx的virtualenv中安装psycopg2？

1 个答案: