Mac Could not find the GDAL library 问题解决

1. 参考

https://docs.djangoproject.com/en/5.0/ref/contrib/gis/install/#macos

2. 问题描述

苹果系统 Mac 中搭建 GeoDjango 开发环境时出现以下报错：

  File "*.venv/lib/python3.8/site-packages/django/contrib/gis/gdal/libgdal.py", line 60, in <module>
    raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: Could not find the GDAL library (tried "gdal", "GDAL", "gdal3.4.0", "gdal3.3.0", "gdal3.2.0", "gdal3.1.0", "gdal3.0.0", "gdal2.4.0", "gdal2.3.0", "gdal2.2.0"). Is GDAL installed? If it is, try setting GDAL_LIBRARY_PATH in your settings.

3. 解决步骤

3.1. 安装依赖包

sudo port install postgresql13-server
sudo port install geos
sudo port install proj6
sudo port install postgis3
sudo port install gdal
sudo port install libgeoip

pip install GDAL=="$(gdal-config --version).*" 

3.2. 配置 GDAL_LIBRARY_PATH

sudo find / -name "libgdal*"

找到 libgdal.dylib 的路径

/opt/local/lib/libgdal.dylib

settings.py 中添加以下代码：

GDAL_LIBRARY_PATH = '/opt/local/lib/libgdal.dylib'

3.3. 配置 GEOS_LIBRARY_PATH

sudo find / -name "libgeos_c*"

找到 libgeos_c.dylib 的路径

/opt/local/lib/libgeos_c.dylib

settings.py 中添加以下代码：

GEOS_LIBRARY_PATH = '/opt/local/lib/libgeos_c.dylib'