解决ModuleNotFoundError: No module named ‘flask._compat的问题_Python

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_type
modulenotfounderror: no module named 'flask._compat'

查看安装的包

pip  freeze

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_unicode
importerror: 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 escape
importerror: cannot import name 'escape' from 'jinja2' (/users/tly/opt/anaconda3/envs/flaskproject/lib/python3.8/site-packages/jinja2/__init__.py)