![](/img/trans.png)
[英]ImportError: cannot import name 'CypherError' from 'neo4j.v1' (/usr/local/lib/python3.7/site-packages/neo4j/v1/__init__.py)
[英]Django2.1.7 ImportError: cannot import name 'util' from 'django.forms' (/Users/lib/python3.7/site-packages/django/forms/__init__.py)
在從 Django1.5 遷移到 Django2.1.7 的過程中,我們在嘗試啟動服務器時遇到了庫函數中的隱式導入錯誤。
Traceback (most recent call last):
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x10945f950>
Traceback (most recent call last):
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/utils/autoreload.py", line 248, in raise_last_exception
raise _exception[1]
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/core/management/__init__.py", line 337, in execute
autoreload.check_errors(django.setup)()
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/apps/registry.py", line 89, in populate
app_config = AppConfig.create(entry)
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/apps/config.py", line 90, in create
module = import_module(entry)
File "/Users/MAK/Envs/lifemed3/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/MAK/Envs/lifemed3/lib/python3.7/site-packages/json_field/__init__.py", line 1, in <module>
from json_field.fields import JSONField
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/json_field/fields.py", line 4, in <module>
from json_field.forms import JSONFormField
File "/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/json_field/forms.py", line 5, in <module>
from django.forms import fields, util
ImportError: cannot import name 'util' from 'django.forms' (/Users/MAK/Envs/lifemed3/lib/python3.7/site-packages/django/forms/__init__.py)
我們已經檢查了關於循環依賴的這個答案,但是因為它是在代碼級別並且很容易解決,但是就庫而言,解決這個問題的最佳方法是什么?
僅供參考:我們正在使用 Django2.1.7 從 python 2.7 和 django 1.5.5 遷移到 python3.7
更新(已解決)
根據下面 mfrackowiak 的回答,我們必須分叉他們的repo ,為支持應用補丁並從更改后的版本安裝。 然后它對我有用
我找到了這兩個包:
如果這是您正在使用的包django-json-field ,然后查看 2014 年的最后一個版本,所以我很確定這個包與Django 2.0
不兼容
如果jsonfield是您的包,那么即使它們也不支持Django 2.0
。 他們有 1.8 到 1.11
在您的代碼中發布您打算使用該包執行的操作,然后我可能會給您一個自定義解決方案或包,它實際上支持 2.0 並完成工作。
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