Python:导入cx_Oracle ImportError:没有名为cx_Oracle error的模块是thown

I try to write a script in .py for oracle connectivity:

我尝试用.py为oracle连接性编写一个脚本:

#!/usr/bin/python

import cx_Oracle

connstr='username/pwd@database'
conn = cx_Oracle.connect(connstr)
curs = conn.cursor()

curs.execute('select * from table1;')
print curs.description
for row in curs:
   print row
conn.close()

I get the following error:

我得到以下错误:

Traceback (most recent call last):
  File "test_SQLPython.py", line 3, in ?
    import cx_Oracle
ImportError: No module named cx_Oracle

Any help would be appreciated? Thanks.

需要帮忙吗?谢谢。

8 个解决方案

#1

I had a similar problem, you gotta make sure you have:

我也有类似的问题，你要确保你有:

oracle instant client
oracle即时客户端
cx_Oracle binary( from SourceForge )
cx_Oracle二进制(来自SourceForge)
Python IMPORTANT: Make sure they are ALL either 64-bit or 32-bit, mixing is gonna cause problems
Python的重要性:确保它们都是64位或32位的，混合将导致问题

#2

Windows help:

Windows帮助:

Get the instant client. It has no install exe. Just copy it somewhere.
获得即时的客户。它没有安装exe。复制它。
Put the directory into your PATH variable.
将目录放入路径变量中。
Go to the command prompt and set 2 variables - for example:

转到命令提示符并设置2个变量——例如:

TNS_ADMIN=C:\instant_client\instantclient_11_2 ORACLE_HOME=C:\instant_client\instantclient_11_2

TNS_ADMIN = C:\ instant_client \ instantclient_11_2 ORACLE_HOME = C:\ instant_client \ instantclient_11_2

Then install the cx_Oracle module from an exe. If you use pip or easy_install, ...good luck.

然后从exe中安装cx_Oracle模块。如果您使用pip或easy_install，…祝你好运。

You can get the installer here: https://pypi.python.org/pypi/cx_Oracle/5.1.3

您可以在这里获得安装程序:https://pypi.python.org/pypi/cx_Oracle/5.1.3

#3

To access Oracle from python you need (additionally) the cx_Oracle module. The module must be located either in the system python path or you have to set the PYTHONPATH appropriate.

要从python访问Oracle，您需要(另外)cx_Oracle模块。模块必须位于系统python路径中，或者必须设置适合的PYTHONPATH。

#4

I have just faced the same problem. First, you need to install the appropriate Oracle client for your OS. In my case, to install it on Ubuntu x64 I have followed this instructions https://help.ubuntu.com/community/Oracle%20Instant%20Client#Install_RPMs

我刚刚遇到了同样的问题。首先，需要为操作系统安装适当的Oracle客户端。在我的例子中，要在Ubuntu x64上安装它，我遵循了以下指令:https://help.ubuntu.com/community/Oracle%20Instant%20Client#Install_RPMs

Then, you need to install cx_Oracle, a Python module to connect to the Oracle client. Again, assuming you are running Ubuntu in a 64bit machine, you should type in a shell:

然后，您需要安装cx_Oracle，这是一个连接到Oracle客户端的Python模块。同样，假设你在一个64位的机器上运行Ubuntu，你应该输入一个shell:

wget -c http://prdownloads.sourceforge.net/cx-oracle/cx_Oracle-5.0.4-11g-unicode-py27-1.x86_64.rpm
sudo alien -i cx_Oracle-5.0.4-11g-unicode-py27-1.x86_64.rpm

This will work for Oracle 11g if you have installed Python 2.7.x, but you can download a different cx_Oracle version in http://cx-oracle.sourceforge.net/ To check which Python version do you have, type in a terminal:

如果您已经安装了Python 2.7，这将适用于Oracle 11g。但是你可以在http://cx-oracle.sourceforge.net/下载一个不同的cx_Oracle版本来检查你有哪个Python版本，输入一个终端:

python -V

I hope it helps

我希望这有助于

#5

Unknown92 answer helped me (on windows). Note that all versions must fit.

答案在windows上帮助了我。注意，所有版本都必须适合。

I've downloaded cx_Oracle here, for me the file cx_Oracle-5.2.1-12c.win-amd64-py3.5.exe worked with:

我在这里下载了cx_Oracle，为我的文件cx_orac -5.2.1-12c.win-amd64-py3.5。exe共事:

Python 3.5.1 64bit. for some reason the default download link from the main page is for the 32bit version.
Python 3.5.1 64位。出于某种原因，主页上的默认下载链接用于32位版本。
And oracle instance client 12.1.0.2.0 (the file named instantclient-basic-windows.x64-12.1.0.2.0.zip) here.
这里还有oracle实例客户机12.1.0.2.0(名为instantclient-basic-windows.x64- 12.1.0.2.0.0 .zip)。

#6

Tried installing it via rpm posted in above answers, but it didn't worked. What worked instead is plain pip install.

尝试在上面的答案中安装它，但是没有成功。取而代之的是简单的pip安装。

pip install cx_oracle

The above command installed cx_oracle=6.1 Please note that I'm using python 2.7.14 Anaconda release and oracle 12c.

上面的命令安装了cx_oracle=6.1请注意，我使用的是python 2.7.14 Anaconda发行版和oracle 12c。

#7

For me the problem was that I had installed cx_Oracle via DOS pip which changed it to lower case. Installing it through Git Bash instead kept the mixed case.

对我来说，问题是我已经通过DOS pip安装了cx_Oracle，它将其更改为小写。通过Git Bash安装它，反而保持了混合情况。

#8

Windows and Anaconda help

Windows和蟒蛇帮助

Anaconda 4.3.0 comes with Python 3.6 as the root. Currently cx_Oracle only supports up to 3.5. I tried creating 3.5 environment in envs, but when running cx_Oracle-5.2.1-11g.win-amd64-py3.5.exe it installs in root only against 3.6

Anaconda 4.3.0以Python 3.6为根。目前cx_Oracle只支持3.5。我尝试在envs中创建3.5环境，但是在运行cx_Oracle-5.2.1-11g.win-amd64-py3.5时。exe它只在3.6的基础上安装

Only workaround I could find was to change the root environment from 3.6 to 3.5:

我能找到的唯一解决办法是将根环境从3.6改为3.5:

activate root
conda update --all python=3.5

When that completes run cx_Oracle-5.2.1-11g.win-amd64-py3.5.exe.

完成后运行cx_oracle - 5.1 -11g.win-amd64-py3.5.exe。

Tested it with import and worked fine.

用进口测试，效果良好。

import CX_Oracle

#1