我正在使用PyCharm和Python 3.8 - 64位。我想学习用Postgis数据库实现GeoDjango和Leaflet。我有一个带有postgresql扩展的数据库。我也安装了psycopg2，按照我之前这个帖子的评论。psycopg2没有被postgres django检测到。在settings.py中。
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'my-database',
'USER': 'my-user',
'PASSWORD': 'my-password',
'HOST': 'localhost',
'PORT': '5432',
}
}
当我试图运行 python manage.py makemigrations 我得到以下错误。
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\core\management\__init__.py", line 357, in execute
django.setup()
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\apps\registry.py", line 114, in populate
app_config.import_models()
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\apps\config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File "C:\Users\HP\AppData\Local\Programs\Python\Python38\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
class AbstractBaseUser(models.Model):
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\models\base.py", line 117, in __new__
new_class.add_to_class('_meta', Options(meta, app_label))
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\models\base.py", line 321, in add_to_class
value.contribute_to_class(cls, name)
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\models\options.py", line 204, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\__init__.py", line 28, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\utils.py", line 201, in __getitem__
backend = load_backend(db['ENGINE'])
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\db\utils.py", line 110, in load_backend
return import_module('%s.base' % backend_name)
File "C:\Users\HP\AppData\Local\Programs\Python\Python38\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\backends\postgis\base.py", line 6, in <module>
from .features import DatabaseFeatures
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\backends\postgis\features.py", line 1, in <module>
from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\backends\base\features.py", line 3, in <module>
from django.contrib.gis.db.models import aggregates
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\models\__init__.py", line 3, in <module>
import django.contrib.gis.db.models.functions # NOQA
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\models\functions.py", line 4, in <module>
from django.contrib.gis.db.models.fields import BaseSpatialField, GeometryField
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\db\models\fields.py", line 3, in <module>
from django.contrib.gis import forms, gdal
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\forms\__init__.py", line 3, in <module>
from .fields import ( # NOQA
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\forms\fields.py", line 2, in <module>
from django.contrib.gis.gdal import GDALException
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\gdal\__init__.py", line 28, in <module>
from django.contrib.gis.gdal.datasource import DataSource
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\gdal\datasource.py", line 39, in <module>
from django.contrib.gis.gdal.driver import Driver
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\gdal\driver.py", line 5, in <module>
from django.contrib.gis.gdal.prototypes import ds as vcapi, raster as rcapi
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\gdal\prototypes\ds.py", line 9, in <module>
from django.contrib.gis.gdal.libgdal import GDAL_VERSION, lgdal
File "C:\Users\HP\PycharmProjects\GeoDjango and Leaflet\venv\lib\site-packages\django\contrib\gis\gdal\libgdal.py", line 40, in <module>
raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: Could not find the GDAL library (tried "gdal203", "gdal202", "gdal201", "gdal20", "gdal111"). Is GDAL installed? If it is, try setting GDAL_LIBR
ARY_PATH in your settings.
我看了很多帖子，但我找不到解决方案。
看来你根本没有安装GDAL库。makemigrations.
pip install GDAL
看来你可以试试这个页面中提到的解决方案。
从这条线解决 GeoDjango在Windows上。"找不到GDAL库" "OSError: [WinError 126] 找不到指定的模块" .1. 基本上去这个网站 https:/trac.osgeo.orgosgeo4w。 .2. 根据你的要求下载32位或64位的软件包.3.安装过程中，选择Web-GIS安装，然后点击下一步.4.在选择的软件包下，选择GDAL，MapServer。5.如果允许的话，选择Apache.5.系统会提示安装一些额外的依赖关系。6.同意所有的条款和条件提示7.安装完成后，进入settings.py，并在之前添加以下内容 INSTALLED_APPS = [...] 。
if os.name == 'nt':
import platform
OSGEO4W = r"C:\OSGeo4W"
if '64' in platform.architecture()[0]:
OSGEO4W += "64"
assert os.path.isdir(OSGEO4W), "Directory does not exist: " + OSGEO4W
os.environ['OSGEO4W_ROOT'] = OSGEO4W
os.environ['GDAL_DATA'] = OSGEO4W + r"\share\gdal"
os.environ['PROJ_LIB'] = OSGEO4W + r"\share\proj"
os.environ['PATH'] = OSGEO4W + r"\bin;" + os.environ['PATH']