Linux中cx_Oracle python模块安装

Question

我想从 Python 脚本连接到 Oracle 数据库。为此，我正在尝试安装 cx_oracle Python 模块。我的 Linux 机器上没有安装 Oracle。

在安装 cx_oracle 模块时，它会抛出错误提示 “找不到 Oracle 软件安装”

有没有什么方法可以在不安装 Oracle 的情况下从 python 连接到 Oracle DB。

-bash-4.1$ pip install cx_Oracle
DEPRECATION: Python 2.6 is no longer supported by the Python core team, please upgrade your Python. A future version of pip will drop support for Python 2.6
Collecting cx_Oracle
/usr/lib/python2.6/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/usr/lib/python2.6/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Using cached cx_Oracle-5.3.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-PUb2Gy/cx-Oracle/setup.py", line 174, in <module>
        raise DistutilsSetupError("cannot locate an Oracle software " \
    distutils.errors.DistutilsSetupError: cannot locate an Oracle software installation

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-PUb2Gy/cx-Oracle/
/usr/lib/python2.6/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

Answer 1

如果只是为了避免不受支持的软件带来的安全问题，我绝对会建议升级您的 Python 安装。您可以从https://www.python.org/downloads 下载新版本。根据您的操作系统，可能有安装 Python 替代版本的方法。

不过，仍然可以支持 Python 2.6。如果您使用的是 Oracle Linux 6 或 RHEL 6，您可以从 here 下载 RPM。

如果您需要从源代码构建，最简单的解决方案是使用 cx_Oracle 6 和 pip 使用以下命令：

pip install cx_Oracle --upgrade --pre

cx_Oracle 6 不需要安装 Oracle 客户端即可编译，但 cx_Oracle 5 及更早版本需要。

在运行时，所有版本的 cx_Oracle 都需要 Oracle 客户端。最简单的安装是 Oracle Instant Client，您可以找到 here。

Answer 2

sqlplus_commando 可能确实是您需要的。

您可以像这样在代码中使用此驱动程序：

from sqlplus_commando import SqlplusCommando

sqlplus = SqlplusCommando(hostname='localhost', database='test', 用户名='测试'，密码='测试'） result = sqlplus.run_query("SELECT 42 AS response, 'This is a test' AS question FROM DUAL;") 打印结果