[英]cx_Oracle not recognized by python
更新:确切的解决方案是在标记答案下面的注释中。
在企业redhat linux环境中,Python似乎找不到连接到数据库所需的cx_Oracle软件包。 查看日志:
[user@redhat ~]$ echo $PYTHONPATH
~/.local/lib/python3.4/site-packages
[user@redhat ~]$ cd $PYTHONPATH
[user@redhat site-packages]$ ls -l
total 1912
drwxrwxr-x 2 user user 131 Apr 20 12:00 cx_Oracle-6.2.1.dist-info
-rwxrwxr-x 1 user user 1900997 Apr 20 12:00 cx_Oracle.cpython-34m.so
-rw-rw-r-- 1 user user 290 Apr 20 12:00 easy-install.pth
drwxrwxr-x 4 user user 114 Apr 20 12:00 et_xmlfile
drwxrwxr-x 2 user user 117 Apr 20 12:00 et_xmlfile-1.0.1-py3.4.egg-info
drwxrwxr-x 2 user user 150 Apr 20 12:00 jdcal-1.4.dist-info
-rw-rw-r-- 1 user user 12553 Apr 20 12:00 jdcal.py
-rw-rw-r-- 1 user user 13386 Apr 20 12:00 jdcal.pyc
drwxrwxr-x 21 user user 4096 Apr 20 12:00 openpyxl
drwxrwxr-x 2 user user 154 Apr 20 12:00 openpyxl-2.5.3-py3.4.egg-info
drwxrwxr-x 2 user user 61 Apr 23 12:00 __pycache__
-rw-rw-r-- 1 user user 2389 Apr 23 12:00 site.py
-rw-rw-r-- 1 user user 1743 Apr 23 12:00 site.pyc
[user@redhat site-packages]$ python
Python 2.7.5 (default, May 3 2017, 07:55:04)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-14)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cx_Oracle
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named cx_Oracle
>>> import openpyxl
openpyxl/xml/__init__.py:15: UserWarning: The installed version of lxml is too old to be used with openpyxl
warnings.warn("The installed version of lxml is too old to be used with openpyxl")
>>> exit()
[user@redhat site-packages]$
请注意,cx_Oracle和openpyxl都使用pip在一个命令中pip install --user cx_Oracle openpyxl
: pip install --user cx_Oracle openpyxl
它们都位于同一位置,并且以相同的方式放入python,但是可以看到openpyxl却没有看到cx_Oracle。 我在这里做错了什么?
您似乎正在运行Python 2.7,但是您安装的cx_Oracle适用于Python 3.4! cx_Oracle是纯C模块,因此只能在为其编译的Python中工作。 另一个模块(openpyxl)具有纯Python模块,因此它将至少部分加载。 您需要运行Python 3.4或重新安装适用于Python 2.7的两个模块。
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