解决ModuleNotFoundError: No module named ‘flask._
ModuleNotFoundError: No module named ‘flask._compat使用flask_script管理flask启动
注意：
[*]最后两个错有解决没有略过至于报错顺序
[*]在解决完flask版本 Jinja2 有可能会报错 看自己的版本 最后一个Jinja2错误是复现出来的
代码：
from flask import Flask
import config
from flask_script import Manager
app=Flask(__name__)
#app.config.from_object(config.MyConfig)
manager = Manager(app)
if __name__ == '__main__':
manager.run()
报错信息
Traceback (most recent call last): 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 843, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/flask_script/__init__.py", line 15, in <module> from flask._compat import text_typeModuleNotFoundError: No module named 'flask._compat'
查看安装的包
pipfreeze发现安装的flask的版本过高没有 直接拉取的话就是最新版的
版本降低即可解决
pip3 install flask==1.1.4 版本更新完
接着又报错
Traceback (most recent call last): File "test3.py", line 1, in <module> from flask import Flask File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/flask/__init__.py", line 14, in <module> from jinja2 import escape File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/jinja2/__init__.py", line 12, in <module> from .environment import Environment File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/jinja2/environment.py", line 25, in <module> from .defaults import BLOCK_END_STRING File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/jinja2/defaults.py", line 3, in <module> from .filters import FILTERS as DEFAULT_FILTERS # noqa: F401 File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/jinja2/filters.py", line 13, in <module> from markupsafe import soft_unicodeImportError: cannot import name 'soft_unicode' from 'markupsafe' 查看markupsafe版本发现是2.1.1
markupsafe版本降低
python -m pip install markupsafe==2.0.1来继续报错
Traceback (most recent call last): File "test3.py", line 1, in <module> from flask import Flask File "/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/flask/__init__.py", line 14, in <module> from jinja2 import escapeImportError: cannot import name 'escape' from 'jinja2' (/Users/tly/opt/anaconda3/envs/FlaskProject/lib/python3.8/site-packages/jinja2/__init__.py)
继续降版本
pip install Jinja2==3.0.0
到此为止输入命令python test3.py runserver项目启动起来
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。
来源:https://www.jb51.net/python/3220511eg.htm
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