AttributeError:模块'simplejson‘在“导入瓶”上没有属性’转储‘

Question

在导入烧瓶模块(或任何依赖于烧瓶的模块)时，我得到以下错误：

Traceback (most recent call last):
  File "main.py", line 2, in <module>
    from flask import Flask, request, render_template, redirect, abort, make_response
  File "/usr/lib/python3.7/site-packages/flask/__init__.py", line 21, in <module>
    from .app import Flask, Request, Response
  File "/usr/lib/python3.7/site-packages/flask/app.py", line 26, in <module>
    from . import cli, json
  File "/usr/lib/python3.7/site-packages/flask/json/__init__.py", line 26, in <module>
    _slash_escape = '\\/' not in _json.dumps('/')
AttributeError: module 'simplejson' has no attribute 'dumps'

我的系统和包装细节：

>> uname -r
5.2.3-arch1-1-ARCH
>> pacman -Q --info python-flask
Name            : python-flask
Version         : 1.0.3-1
Description     : Micro webdevelopment framework for Python
Architecture    : any
URL             : http://flask.pocoo.org/
Licenses        : custom:BSD
Groups          : None
Provides        : None
Depends On      : python-werkzeug  python-jinja  python-itsdangerous  python-click
Optional Deps   : None
Required By     : python-flask-wtf
Optional For    : None
Conflicts With  : None
Replaces        : None
Installed Size  : 789.00 KiB
Packager        : Felix Yan <felixonmars@archlinux.org>
Build Date      : Sat 25 May 2019 10:31:00 AM IST
Install Date    : Sun 04 Aug 2019 01:11:45 AM IST
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature

Answer 1

我通过编辑上述文件/usr/lib/python3.7/site-packages/flask/json/__init__.py来解决这个问题。

从更改第21行

from itsdangerous import json as _json

到

import json as _json

这不应该是解决这个问题的正确方法，所以我将等待正确的答案，现在使用这个修复。

Answer 2

我通过使用以下命令在映射本身中安装simplejson (对于我来说是/usr/local/Cellar/aws-sam-cli/1.50.0/libexec/lib/python3.8)来修复这个问题：

pip3 install simplejson -t sites-packages