[英]Django Crispy Forms
我對 Django 還很陌生,我已經安裝並嘗試在我的網絡應用程序中使用脆皮表單。我在我安裝的應用程序中添加了脆皮表單,后面有一個逗號。 當我運行服務器時,我收到此錯誤:
Watching for file changes with StatReloader
Performing system checks...
Exception in thread Thread-3:
Traceback (most recent call last):
File "c:\users\amart\django\django\template\utils.py", line 66, in __getitem__
return self._engines[alias]
KeyError: 'django'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "c:\users\amart\django\django\template\backends\django.py", line 121, in get_package_libraries
module = import_module(entry[1])
File "C:\Users\amart\AppData\Local\Programs\Python\Python36-32\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\amart\AppData\Local\Programs\Python\Python36-32\lib\site-packages\crispy_forms\templatetags\crispy_forms_field.py", line 10, in <module>
from crispy_forms.utils import TEMPLATE_PACK, get_template_pack
File "C:\Users\amart\AppData\Local\Programs\Python\Python36-32\lib\site-packages\crispy_forms\utils.py", line 11, in <module>
from django.utils.lru_cache import lru_cache
ModuleNotFoundError: No module named 'django.utils.lru_cache'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\amart\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 916, in _bootstrap_inner
self.run()
File "C:\Users\amart\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "c:\users\amart\django\django\utils\autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "c:\users\amart\django\django\core\management\commands\runserver.py", line 117, in inner_run
self.check(display_num_errors=True)
File "c:\users\amart\django\django\core\management\base.py", line 390, in check
include_deployment_checks=include_deployment_checks,
File "c:\users\amart\django\django\core\management\base.py", line 377, in _run_checks
return checks.run_checks(**kwargs)
File "c:\users\amart\django\django\core\checks\registry.py", line 72, in run_checks
new_errors = check(app_configs=app_configs)
File "c:\users\amart\django\django\contrib\admin\checks.py", line 59, in check_dependencies
for engine in engines.all():
File "c:\users\amart\django\django\template\utils.py", line 90, in all
return [self[alias] for alias in self]
File "c:\users\amart\django\django\template\utils.py", line 90, in <listcomp>
return [self[alias] for alias in self]
File "c:\users\amart\django\django\template\utils.py", line 81, in __getitem__
engine = engine_cls(params)
File "c:\users\amart\django\django\template\backends\django.py", line 25, in __init__
options['libraries'] = self.get_templatetag_libraries(libraries)
File "c:\users\amart\django\django\template\backends\django.py", line 43, in get_templatetag_libraries
libraries = get_installed_libraries()
File "c:\users\amart\django\django\template\backends\django.py", line 108, in get_installed_libraries
for name in get_package_libraries(pkg):
File "c:\users\amart\django\django\template\backends\django.py", line 125, in get_package_libraries
"trying to load '%s': %s" % (entry[1], e)
django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportError raised when trying to load 'crispy_forms.templatetags.crispy_forms_field': No module named 'django.utils.lru_cache'
我不知道我的代碼有什么問題。 我發現其他一些用戶在使用脆皮表單時遇到問題,但遇到了不同的錯誤。 他們也無法從 python shell 導入脆皮形式,但這對我有用。 即使我只向已安裝的應用程序添加了脆表單,而沒有嘗試將其應用到我的模板中,我仍然會收到錯誤消息。 請讓我知道我做錯了什么。 提前致謝。
您的 django-crispy-forms 版本已過時,已修復。 通過運行更新它:
pip install django-crispy-forms -U
-U
使 pip 將您當前的安裝升級到最新的。 您可以通過運行pip install -h
找到有關它的更多信息
問題已經解決。 我卸載了我擁有並使用的 django 版本:
pip install Django==2.1.7
感謝@YugandharChaudhari 幫助我意識到更改版本。
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