无法在 mac 上为 oracle_cx 安装 oracle 客户端

Question

尝试为 oracle_cx 安装 oracle 客户端。当我尝试安装 oracle 时

我收到了这条消息：

install_ic.sh                                                     
    /Users/ user/Downloads/instantclient_19_8
    Creating dir: /Users/ user/Downloads/instantclient_19_8...
    Copying /Volumes/instantclient-basic-macos.x64-19.8.0.0.0dbru files ...
    Using existing dir: /Users/ user/Downloads/instantclient_19_8...
    Copying /Volumes/instantclient-basic-macos.x64-19.8.0.0.0dbru files ...
    Using existing dir: /Users/ user/Downloads/instantclient_19_8...
    Copying 1 files ...
    cp: 1/*: No such file or directory
    Using existing dir: /Users/ user/Downloads/instantclient_19_8...
    Copying /Volumes/instantclient-basic-macos.x64-19.8.0.0.0dbru files ...
    Using existing dir: /Users/ user/Downloads/instantclient_19_8...
    Copying 2 files ...
    cp: 2/*: No such file or directory

因此，当我在此之后尝试使用 cx_oracle 时出现错误：

DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library: "dlopen(libclntsh.dylib, 1): image not found". See https://cx-oracle.readthedocs.io/en/latest/user_guide/installation.html for help

我做错了什么？

Answer 1

找到https://cx-oracle.readthedocs.io/en/latest/user_guide/initialization.html#usinginitoracleclient，可以使用以下方式初始化oracle客户端：

import cx_Oracle
import sys
import os

try:
    if sys.platform.startswith("darwin"):
        lib_dir = os.path.join(os.environ.get("HOME"), "Downloads",
                               "instantclient_19_8")
        cx_Oracle.init_oracle_client(lib_dir=lib_dir)
    elif sys.platform.startswith("win32"):
        lib_dir=r"C:\oracle\instantclient_19_9"
        cx_Oracle.init_oracle_client(lib_dir=lib_dir)
except Exception as err:
    print("Whoops!")
    print(err);
    sys.exit(1);

所以我粘贴了

lib_dir = os.path.join(os.environ.get("HOME"), "Downloads",
                               "instantclient_19_8")
cx_Oracle.init_oracle_client(lib_dir=lib_dir)

在光标定义和 cx_oracle 开始正常工作之前。