Question

我正在尝试运行需要MySql数据库的Django应用程序，
我已经安装了MySql，并且可以与其他语言配合使用。
我正在使用虚拟环境来运行Django项目，
但是我在使用以下python库设置MySql配置时遇到了问题- pymysql和mysqlclient

项目结构-

似乎存在版本不匹配，
以下是完整错误-

(env) Aniruddhas-MacBook-Pro:djangocrashcourse-master aniruddhanarendraraje$ python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 926, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 77, in raise_last_exception
    raise _exception[1]
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/core/management/__init__.py", line 337, in execute
    autoreload.check_errors(django.setup)()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/djangocrashcourse-master/posts/models.py", line 5, in <module>
    class Posts(models.Model):
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/models/base.py", line 117, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/models/base.py", line 321, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/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 "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/utils.py", line 201, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 36, in <module>
    raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.

问题-

mysqlclient 1.4.4已经安装，仍然是错误。
pymysql的版本为0.9.3，我尝试将其卸载并运行，
但这需要我重新安装。

我已经尝试了以下-

pip uninstall pymysql
pip uninstall mysqlclient

然后仅安装pymysql并运行
仅安装mysqlclient并运行
同时安装pymysql和mysqlclient并运行

我正在尝试运行此项目进行研究-
https://github.com/bradtraversy/djangocrashcourse

先检查运行虚拟环境，然后再运行管理/ py文件的步骤-

Aniruddhas-MacBook-Pro:python_django aniruddhanarendraraje$ ls
djangocrashcourse-master        env                             mysite
Aniruddhas-MacBook-Pro:python_django aniruddhanarendraraje$ source ./env/bin/activate
(env) Aniruddhas-MacBook-Pro:python_django aniruddhanarendraraje$ cd djangocrashcourse-master/
(env) Aniruddhas-MacBook-Pro:djangocrashcourse-master aniruddhanarendraraje$ pip list
Package     Version
----------- -------
Django      2.2.4  
mysqlclient 1.4.4  
pip         19.2.3 
pytz        2019.2 
setuptools  41.2.0 
sqlparse    0.3.0  
wheel       0.33.6 
(env) Aniruddhas-MacBook-Pro:djangocrashcourse-master aniruddhanarendraraje$ python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 15, in <module>
    import MySQLdb as Database
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/MySQLdb/__init__.py", line 18, in <module>
    from . import _mysql
ImportError: dlopen(/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libmysqlclient.21.dylib
  Referenced from: /Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so
  Reason: image not found

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 926, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 77, in raise_last_exception
    raise _exception[1]
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/core/management/__init__.py", line 337, in execute
    autoreload.check_errors(django.setup)()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/djangocrashcourse-master/posts/models.py", line 5, in <module>
    class Posts(models.Model):
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/models/base.py", line 117, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/models/base.py", line 321, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/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 "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/utils.py", line 201, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/aniruddhanarendraraje/Documents/work/pocs/pythonBasics/python_django/env/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 20, in <module>
    ) from err
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?

Python错误：django.core.exceptions.ImproperlyConfigured：需要mysqlclient 1.3.13或更高版本；你有0.9.3

0 个答案: